Each of Tony’s items are $7.65
Each of Tanyas items are $10.2
The measure of B’C’ is 18 inches
Im not sure what that means but i can try...
Im not sure the order to put them in but the positive line is
y>1/2x-1
And the negative line is
Y<=3x+1
(I couldn’t find a less than and equal to sign)

Refer to the attachment for calculations.
Answer:
The answer is A; H(a) = 3.00a +19.00; shift 15 units up
Step-by-step explanation:
If the downloading feature is enabled the cost function becomes H(a) = 3.00a + 19.00
The y-interpret of H(a) is 15 greater than the y-intercept if C(a)
The slopes of both functions are the same