By what percent did the buying power of the federal minimum wage decline from 1978 to 1988? Round to the nearest whole percent.

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

Abag contains 10 white golf balls and 6 striped golf balls. a golfer wants to add 112 golf balls to the bag. he wants the ratio of white to striped gold balls to remain the same. how many of each should he add?

Last week jason walked 3 1/4 miles each day for 3 days and 4 5/8 miles each day for 4 days. about how many miles did jason walk last week?