Can someone help me with this one also it’s just perimeter

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Revirite the formula to determine the area covered by one can of paint. alyssa and her father are going to paint the house this summer. they know they'll need 6 cans of paint. enter the correct answer. 000 done a formula that describes this scenario is (licierali 000 oo 6 w w = the total area of the walls p = area covered by a can of paint