what is main object of nstp?​

PLS HELP BEING TIMED!!!Which equation represents the law of conservation of energy in a closed system?KEi + PEi = KEf + PEfPEi + PEf = KEi + KEfKEi KEf = PEi PEfKEi PEf = PEi KEf Who wrote the Andrew Jackson Second annual message to congress SOMEONE PLEASE HELP !! You started the trail with 1000lbs. of food.You now have 1000lbs. of food.What percentage of your starting amount do you have left? Use the elimination method to solve the system of equations. Choose the correct ordered pair. 2x-5y=23x+2y=-16 King notes in lines 6970 that civil rights activists are sometimes asked, When will you be satisfied? What does he say will satisfy African Americans?A. peace and freedomB. a Constitutional amendmentC. justice and righteousnessD. creative suffering It rains 24 out of 30 days in a month.At the same rate, about how manydays would you expect it torain in 180 days? I WILL GIVE BRAINLIEST!!!! :) Choose one of the following questions to reflect on. Create a product that displays and explains your reflection. What happens when my perseverance doesnt give me the outcome I wanted/expected? How do I feel when others accomplish a task without having to persevere, yet I have to persevere/struggle quite a bit and still fail or am not as successful? How do I feel about the other individual? Why? HELP ASAP LAST QUESTION The percent by mass is the ratio of the mass of each element to the total mass of the compound expressed as a percentage. Attached is the formula. What is the percent by mass of Oxygen in 10 grams of H20 given the mass by analysis of oxygen in that sample is 8 grams. (Answer should be given with a %. i.e. if the answer were 23% you answer in the textbox would be 23%) Percent by mass = mass of solute mass of solution x 100 help me please:(( Explain the principle of federalism (Help needed ASAP Im confused ) Solve the equation by using the distributive property first 5. The Smith family paid $146.50 for dinner. If they tipped 20%. How muchdid they spend total including the tip? simplify 6 + 15 x 72= 22 is 44% of what number? Will mark brainliest! Plz plz plz do question Beth is putting up a fence in her yard so her dog can play outside. She purchased 80 feet of fencing. If the fenced area is a rectangle with a width of 30 feet, what is the length of the fenced area? 1. Why did many people think that Governor Henry S. Johnston was so unusual?HELPPP!!! I GIVE BRAINLIEST If correct How do mutations lead to variation?A. by providing a source of energy for cellsB. by signaling proteins to be synthesizedC. by giving organisms new features for survivalD. by producing changes in the genetic code