Simplify the expression

4.2v - 5 - 6.5v

Beth did a walk for charity and earned $24 for every 2 1/2 miles she walked. what is the unit rate?

Simplify (3x - 5) - (4x + 6).

Seven students were surveyed on the number of hours of TV they watch each week. The results are shown below. 8, 12, 13, 15, 16, 17, 17 What is the mode of the data set? 7 14 15 17

What is the variance of 5, 13, 32, 37, 49, 51, 63

Find the greatest common divisor of the numbers. 198 and 286

What's the mean median mode range of 29.3 31.7 32.4 46.3 48.9

The mean lifetime of a tire is 46 months with a variance of 49. if 133 tires are sample, what is the probability that the mean of the sample would differ from the population mean by less than 1.05 months? round your answer to four decimal places.

There are 30 legs in my backyard but I'm counting dogs and kids. How many dogs and kids are in my backyard?

Find the intercepts for the graph of the equation. - 2x - 2y = 10

The perimeter of a rectangle is 72 m. The width of the rectangle is 16 m. What is the area of the rectangle