The education is (x-h)^2 + k ands the vertex is (h,k)

Start by writing a formula, where
is Brad's purchase price and
is the original price.

Subtract
from both sides.

Multiply both sides by
.

Answer:
4.6 inches
hope it helps
Step-by-step explanation:
11.5 x 1.4 = 16.1
16.1 - 11.5 = 4.6