Can anybody me with these questions? i have no idea how to do them. the more you could do, the better.

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

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?