Select all the expressions that are equivalent to 4b: 1. b+b+b+b

2. b+4

3. 2b+2b

4. bxbxbxb

5. b divided by 1/4

Please help me!! I am having trouble finding this answers, pls don't put fake answers this is 20 points.

David must install fencing around a lot that is shaped like a right angle.the side of lot that runs east-west is 200 ft long.the side of the lot runs north-south is 125 ft long.calculate how many feet of fencing he will need to surround the entire lot.

If the dimensions of a rectangular prism are 5 ft x 3.5 ft x 2 ſt, what is the surface area?

Richard save $32 in march he saved $48 in april and $38 in may then richard spent $113 on a keyboard how much money does richard have left