Interest rate = 7%
I= PRT where I is the interest earned, p is the principal, r is rate as a decimal, and t is time in years.
A - P will give us the interest earned.
12,150 - 9,000 = 3,150
3150 = (9000)(r)(5)
3150 = 45,000r
r = 0.07
r = 7%
4 is the nearest integer
as a decimal this number would be 3.5, which would round up to 4.
False, it would be d*t (distance*time)
150 / 12 = 11.6666666667
11.6666666667 x 30 = approximately 350g of flour for 30 cakes