Please help due soon and explain why it’s that choice. Thanks! Giving brainiest btw.

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

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