The after school craft center has 15 boxes of 64 crayons each. in 12 of the boxes , 28 of the crayons have not been used. all the rest have been used how many of the crayons in the center have been used?

(x-5)1/2+5=2 what is possible solution of this equation

Ebert used to make $22 an hour, but got a 10% raise. how much more will he make in a 40 hour work week with raise?

Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of μ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307