There are y boats on lake there are 6 people in each boat write an expression in terms of y for the total number of people in the boats

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.

The price of a car has been reduced from $19,000 to $11,590. what is the percentage decrease of the price of the car?

Find the arc length of the semicircle. 7the grade