Which expression is equivalent to -15x + 39? A) -3(5x – 13)
B) -3(5x + 13)
C)3(5x - 13)
D3(5x + 13)

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?