What is the proportion of a/25=3/10

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Acylinder and its dimensions are shown. which equation can be used to find v, the volume of the cylinder in cubic centimeters?

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0