Well first you need to find the unit rate. Divide 15 by 3.....get 5 minutes for 1 mile. Then you would multiply 5 by 8 which is 40 so 40 minutes (B) is your answer :)
Answer:
x+y=5
Step-by-step explanation:
y=-x+5
add x to both sides
x+y=5
What are you trying to find? y?x?..???
A= a+b/2xheight
8+14/2 x 12
=132in
