Last week Matilda earned $103.50 for babysitting nine hours. She will earn $138 this week when she works for twelve hours. Which of the following equations could Matilda use to find the constant of proportionality if she earns the same hourly rate?

Acylinder has volume 45π and radius 3. what is it’s height?

Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. a. ten people are going on the trip. can zoey make enough 3/4 cup servings so that each person gets one serving? b. what size would the servings need to be for everyone to have a serving?

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?