Fifteen years ago, your parents opened an investment account with an initial deposit of $5,000. Today, that account is worth $38,563. What average annual rate of return did they earn on their investment? A. 14.47%
B. 14.59%
C. 14.78%
D. 15.03%

Digitalhealth electronics inc. is a company that builds diagnostic devices. it was the first company to develop a compact mri scanner by reconfiguring the components of the mri technology. this smaller and user-friendly version of the huge mri scanner created demand from small hospitals, nursing homes, and private practice doctors who were earlier dependent on the scanning machines in large hospitals. which of the following types of innovations does this scenario best illustrate? a. disruptive innovation b. incremental innovation c. radical innovation d. architectural innovation

You are the manager of a large crude-oil refinery. as part of the refining process, a certain heat exchanger (operated at high temperatures and with abrasive material flowing through it) must be replaced every year. the replacement and downtime cost in the first year is $165 comma 000. this cost is expected to increase due to inflation at a rate of 7% per year for six years (i.e. until the eoy 7), at which time this particular heat exchanger will no longer be needed. if the company's cost of capital is 15% per year, how much could you afford to spend for a higher quality heat exchanger so that these annual replacement and downtime costs could be eliminated?

The huntington boys and girls club is conducting a fundraiser by selling chili dinners to go. the price is $7 for an adult meal and $4 for a child’s meal. write a program that accepts the number of adult meals ordered and then children's meals ordered. display the total money collected for adult meals, children’s meals, and all meals.