Investor Matt has $597,000 to invest in a CD and a mutual fund. The CD yields 7.9% and the mutual fund yields an average of 7.4%. The mutual fund requires a minimum investment of $19,000, and Matt requires that at least 4 times as much money be invested in the CD as in the mutual fund. You must invest in order to maximize his return. What is the maximum return? Enter 0 if no investment can be made satisfying the requirements.

Kevin is an auto mechanic. He spends 2 hours when he replaces the shocks on a car and 2 hours when he replaces the brakes. He works no more than 54 hours a week. He routinely completes at least 2 shocks replacements and 6 brake replacements a week. If he charges ​$500 for labor replacing shocks and ​$300 in labor for replacing​ brakes, how many jobs of each type should he complete a week to maximize his​ income?       Kevin should do enter your response here shock replacements and enter your response here brake replacements every week to maximize his weekly income.

e7

school is having an sports event. each fake hair cost 10$ and sells at 13$, take away 2inches of table . each candle box cost 4$ and sells at 12$, takes 6inches of table. each golf cap cost 10$ and sells at 24$, and takes away 10 inches of the table. The table is 60inches long and 30inches wide. the total budget is 4000 dollars. How to maximize the profit.