Chris and Denisha are electricians. • Chris uses the equation c = 504 +65 to calculate how much he charges, c, in dollars, for h hours of work.
• Denisha uses the equation d = 37.50h + 75 to calculate how much she charges, d, in dollars, for h hours of work.
How much do Chris and Denisha charge per hour of work? Enter the answers in the boxes.
Chris charges $
per hour.
Denisha charges S
per hour.