Mr. and mrs. hartford want to buy a car that cost $8,675 mr. hartford saved $1,305 each month for three months mrs. hartford saved $1,574 each month for three months if they combine their money how much will they have? will they have enough money to buy the car?

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.