With a normal curve, the midpoint is also the average

Some retailers use vending machines to sell products that previously could not be stocked due to security concerns

Indicate whether the statement is true or false

A regional restaurant chain spends $90,000 for a local television advertising campaign that delivers $450,000 in incremental revenue

If the incremental contribution margin based on the incremental revenue for this campaign is 75%, then how much would the program return for each additional marketing dollar invested? A) $2.70 B) $3.00 C) $3.75 D) $5.00 E) $7.50