У = 2x X + y = 9
Solve please

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers