Ricky is having a party and wants to fill his swimming pool. If he only uses his hose it takes 3.5 hours more than if he uses only his neighbor's hose. If he uses both hoses together, the pool fills in 7.5 hours. How long does it take for each hose to fill the pool?

Analyze the data sets below. data set a 25,25,25,26,26,26,27,28,28,29,30,31,31,32,33,33,34,35,35,35 data set b 25,25,25,26,26,26,26,27,27,27,27,28,28,29,29,30,31,31,32,34 which of the following statement are true? select all that apply. a. data set a is relatively symmetric and data set b is skewed left. b.the means of the data sets are within 3 units from eachother. c.the data sets have the same standard deviation. d.the mean of data set a is 27.95 and the mean of data set b is 30. e. the data set b has a higher standard deviation than data set a. f. the mean and median of data set a are close in value.

What number is 7 units left of -15?

Write as a product of two polynomials. 2(3–b)+5(b–3)^2