A student of mass 50 kg walks up a set of steps 2.5m high. How much
energy has been transferred to the
gravitational potential energy store?

pls help! and pls don't do this if you do not know the answer :) <3
thx I'll mark brainliest to the first answer!!​

It takes evan 6 3/4 to mow 3 lawns. it takes 2 1/3 hours to mow me. gals lawn and 1 3/4 hot mow ms. lee’s lawn. how many hours does it take evan to mow the third lawn?

What percent of the circle below is shaded?

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]