15. Find the sum of 16y and - 5y?

16. Find the difference of 10x'y and 2x'y

17. Subtract 9a from - 15a

18. From - 9cd?, subtract - 2cd?

The sum of two numbers is three times - 7 if one of the numbers is - 24 what is the other number

Samples of size n = 90 are randomly selected from the population of numbers (0 through 9) produced by a random-number generator, and the variance is found for each sample. What is the distribution of the sample variances?

The average length of a yellow-banded anglefish is 12 inches. This is 4.8 times as long as an average common goldfish.

What is the range of the given function? { (-2, 0), (-4, - 3), (2, - 9), (0, 5), (-5, 7) }

There are 80 people at the city swim park today. Everyone in the park was wearing swim suits or sunglasses, some people had both. How many people had swim suits on but not sunglasses, if you know 68 people have swim suits on and 39 have sunglasses?

38 is what percent of 62?

The guidelines for prescribing a particular drug specify a dose of 300 mg per kilogram of body weight per day. How should you find how much of the drug should be given to a 30-kg child every 8 hours?

Marcos is cutting ribbons for a craft project. each ribbon needs to be 3/4 yards long. if each piece is always within plus or minus 1/16 yards how long are the shortest and longest pies of ribbon ... i don't get it

Find The diagram is not to scale. m 96degree 118degree 115degree 104degree a. 107° b. 117° c. 63° d. 73°

How many pumpkin plants would be in 2 rows