The amount cami raised during last year’s charity walk, $45.50, is 7/10 of the amount she raised this year. which equation represents n, the number of dollars she raised this year?
a. 45.50(7/10) = n
b. 45.50 = 0.7n
c. 45.50 + n = 7/10
d. 45.50 = 0.7 + n