A 10-pound sack of flour costs $8. How much does 40 pounds of flour cost?
What is the cost per pound of flour?

Which of the following graphs represents the function f(x) = 2^x

What does independent variable and dependent variable mean in math?

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.