150 divided by 25 equals 6. 6 times 3 equals 18. This means that you will spend $18 on gas each week.
Edit: Misread the diagram, the previous answer was wrong.
Find the formula for the polynomial
then solve
6v+4w-4
Because you do -*-6v=positive 6v then -*-4w=positive 4w and then -*4=-4 and that takes care of the parenthesis
Basically you multiply the outside number or sign by all things inside the parenthesis
So in this problem you multiplied the negative sign by all the things inside the parenthesis
Length of circumference is 2πr
2 π r and r is equal to 2 cm
I.e 12.5 cm