If you do 100 situps in 10 minutes, you can burn 57 calories. at this rate, how many calories could you burn doing an hour of situps

Draw the line of reflection that reflects △abc onto triangle δ a'b'c'

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?