Estimate the answer of -6 3/5 - (-7 4/15) +2 1/5

The ratio of two numbers is 5 to 4. the sum of the numbers is 99. what number is the greater of the two numbers?

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.

If sin(x) = 0 and cos(x) = 1, what is tan(x)?