15 - (-5) = ...

And

20 - (-12) = ...

Shawna earns $2 for every cup of lemonade she sells. After selling a total of 21 Cups Of Lemonade, how much money will Shawna have made in all?

The side-lengths of a hexagon are increased by a scale factor of 3. Predict how this change will affect the area

Assume that x is a binomial random variable with nequals80 and pequals0.5. Use a normal approximation to find each of the following probabilities. a. Upper P (x less than or equals 35) b. Upper P (38 less than or equals x less than or equals 48) c.

Perform the indicated operation. (6f^2 - 13 - 11f) : (3f - 4)

The mean is always the best measure of central tendency for a set of data. true false

A number is 42,300 when multiplied by 10. find the product of this number and 500

The sum of three consecutive odd numbers is - 87. What are the numbers?

Mrs. Jacobsen purchased a 5-pound package of ground beef for $12.40. She decided to use 8 ounces each day for dinner recipes. What was the cost of ground beef per meal?

If (7^2) ^p = 7^6, what is the value of p? 2 3 4 8

The population at Saint Maria High increased from 1800 students ten years ago to 1926 students last year. What was the percent increase?