Three girls are selling cases of popcorn to earn money for a band trip in their first week emily sold 2 3/4 cases brenda sold 4 1/4 cases and shannon sold 3 1/2 cases part a how many cases of popcorn have the girls sold in all?

Explain how you do each step what term makes it inconsistent y=2x - 4 ?

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Consider circle c with angle acb measuring 3/4 radians.if minor arc ab measures 9 inches, what is the length of the radius of circle c? if necessary, round your answer to the nearest inch.