Frank bought 653 acres of land for a housing development. If 37 acres of his purchase is reserved for a park, how many four-acre building lots are available for sale?

A club's membership increased from to 33 members. Express the new membership as a percent of the old membership.

Two companies make batteries for cell phone manufacturers. One company claims a mean life span of 2.5 years, while the other company claims a mean life span of 3 years (assuming average use of minutes/month for the cell phone).

0.52 in the simplest form.

Suppose you got 8 mangoes and 3 apples for $18 and 3 mangoes and 5 apples for $14.50. How many does each mango and each apple cost?

Johnny answered 40 questions correctly on his 60 question test. What percent of questions did Johnny answer correctly?

Given that y varies directly with x and y = 42 when x = 14, find y when x = 90.

Jamie wrote 4.4 - 0.33 = 1.1. Is his answer resonable? Why or why not?

In a basket, there are 24 good oranges and rest are bad oranges. The ratio of good oranges to the bad oranges is 3:1, find the number of bad oranges

Pretend there are two boxes one inside the other. to find the volume between them would you find the volume of both boxes then subtract them?

For 23 - 25, use the function y = 0.23x + 1. 23. f (2) = ? 24. f (0) = ? 25. f (-3) = ?