Andy estimated that he would need 70 feet of lumber for a tree house project. He later found that the actual amount of lumber needed was 59 feet. What was the percent error of Andy's estimation?

A recipe calls for 3 1/2 cups of sugar. If you want to make only 1/3 of the recipe, how much sugar should you use?

Three less than twice a number is 35. Find the number

How did slugger mcfist get a black eye

Cathy is purchasing a DVD player and tv at the local electronic store. The DVD player costs $49.36 and the tv cost $705.20. If she plans for them in 12 equal payments, what's her monthly cost?

Multiple similarity transformations are performed on a triangle. which elements must be preserved?

Multiply and simplify: 10x (9x^2 + 6x + 7)

B ∩ U A = U (B ∩ A).

Kylee bought a pack of 12 cookies. one-third if the cookies are peanut butter. How many of the cookies in the pack are peanut butter?

How do you know the opposite of a nonzero integer?

The mileages of cars in a fleet of cars are normally distributed with a mean mileage of 52,000 miles and a standard deviation of 2,000 miles. What is the probability of randomly selecting a car with a mileage less than 52,000 miles?