Answer:
Option A - 
Step-by-step explanation:
Given : Expression 
To find : Solve the expression ?
Solution :
Step 1 - Write the expression

Step 2 - Multiply the first two bracket in multiplication if base are same power get added and apply symbol rule of multiplication 

Step 3 - Again multiply the bracket,

Therefore, Option A is correct 
Answer:
16 +7= 23
Step-by-step explanation:
it's a addition problem
Answer:
4.5ft per side
Step-by-step explanation:
square has four equal sides and is L times w times h= A but we have A= 18 already so you reverse and divide so
18/4=4.5
I don’t know your question but he would get 1500 each month so he gets 9000 over sixth months