The radius is half the diameter. So the diameter is 14.
I'd do 9x4=36 because the 9 is from your money and the 4 is from your books. Now since you want to find out how much 4 books cost you just multiply that by 9
Since both equal y
x-1=y=2x+1
x-1=2x+1
minus x both sides
-1=x+1
minus 1 both sides
-2=x
value of x is -2
Answer:
20 is my answer and the question is somehow confusing
