Evaluate the expression when r = 8.2 and s = –3.7.
r – 2s
a. –22.94
b. 0.8
c. 4.5
d. 15.6

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Cherie works in retail and her weekly salary includes commission for the amount she sells. the equation s=400+0.15c models the relation between her weekly salary, s, in dollars and the amount of her sales, c, in dollars. interpret the slope of the equation.

The poll report includes a table titled, “americans using cash now versus five years ago, by age.” the age intervals are not equal. why do you think the gallup organization chose the age intervals of 23–34, 35–54, and 55+ to display these results?