Question

On Monday, Nita earned $85 for h hours of babysitting. On Wednesday, she earned the same rate for 8 hours of babysitting and got a $12 tip. Write an expression to represent how much Nita earned on Wednesday.

Answer 1

It is mentioned that the rate is constant at $85 per hour. Since, on Wednesday, Nita worked for 8 hours, she would earn 85*8 = $680. In addition to this, she also received a tip of $12. Thus, she earned a total of $680 + $12 = $692.

Answer 2

You don’t know how long or how much she got paid an hour on Monday.  All you know is:

h = total number of hours she babysat on Monday, and she made $85.

Let r = the rate she got paid per hour on Monday, then rh = 85, and then r = 85/h

On Wednesday she babysat 8 hours at the same rate of 85/h and got an additional $12

The expression for how much she made on Wednesday is:   8(85/h) + 12