Question

The formula p = 8n - 30 gives the profit p when a number of items n are each sold
at $8 and expenses totaling $30 are subtracted.
a. If the profit is $170.00, how many items were bought?
b. If the same number of items were bought but the expenses changed to $40, would the profit
increase or decrease, and by how much? Explain.

Answer 1

for a, let p = 170 and solve for n
for b, change the "expense" in the original equation to 40
and explain the difference between the original expense and the new expense

Answer 2

Closed due to answered. Please re-open a question if you still need assistance.