Charles has $40 and spends 1/4 of it on some shirts. how much does charles haven left? a. $25 b. $40 c. $30 d. $10

How many different ways can you make change for $.50 using only nickels, dimes, and quarters?

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.