4. a video game sells at arnolds for $14.99. arnold's marks the game up at 40% of the selling price. what is the cost of the game to arnold?
a. $6.00 b. $9.10 c. $6.50 d. $8.99

Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?

Write an algebraic expression for the word expression the quotient of c and 8

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie