What is the measure of angle trv

Evaluate the expression for the given value of the variable 7a - 4a for a =8

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Prism m and pyramid n have the same base area and the same height. cylinder p and prism q have the same height and the same base perimeter. cone z has the same base area as cylinder y, but its height is three times the height of cylinder y. the figures and have the same volume.