Jennifer bought a pair of running shoes selling for $75. if the sales tax was
5.8%, what was the total cost of the purchase? (b) if the shoes sold for x dollars,
what would the total cost of the purchase be in terms of x?

You are constructing a histogram for scores that range from 70 to 100 in whole points. frequencies range from 3 to 10; that is, every whole-point score between 60 and 100 occurs at least 3 times, and at least one score occurs 10 times. which of these would probably be the best range and size for the score intervals along the x-axis?

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

What is the value of x in the equation 2(x-4) = 4(2x + 1)?