Simplify the expression 5xy^2(3+ 2x) - 6xy(4xy + 3y)

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

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.