Tennis balls are sold in cylindrical cans with the balls stacked one on top of the other. A tennis ball has a diameter of 6.7 cm to the nearest cubic centimeter. What is the minimum value of the can that holds a stack of 4 tennis balls?

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

What is the y-intercept of the line with the equation 3x + 4y = 12?

Mallory has been offers two different jobs. she can baby sit for 6 hours a week and get $8.50 an hour. or she can work at the library for 14 hours a week and make $5.50 an hour. which job will allow her to save the most money after 6weeks?