Kris has fifteen 1 1/2 inch blocks. if they were stacked one on top of another in a single stack. how tall would the stack be ?

Which expressions are equivalent to -6 + 3m

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 x is 6, then 7x= a. 13 b. 42 c. 42x d. 76