20 jumps because 45/20 is 2.5 and 8 x 2.5 is 20.
36.64-21=15.64
15.64-6.14=9.5
The answer is she made $9.50 worth in local calls last month
The equation we can use is
3 + 1/4c = 9
To find the total number of pieces, we would just solve the equation.
3 + 1/4c = 9
3 - 3 +1/4c = 9 - 3
1/4c = 6
inverse of division is multiputcation
4/1 *1/4c = 6*4
c = 24
There were 24 pieces of cake in total.
5(2x-7)
Hope this helps !
Have a great day!