Quadrilateral efgh has coordinates e(2a, 2a), f(3a, a), g(2a, 0), and h(0, 0). find the midpoint of he

Daniel bought a computer game for $25 and later sold it to thomas for a 40% profit. how much did daniel sell the computer game for?

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

Solve 2x − 1 = 11 for x using the change of base formula log base b of y equals log y over log b.