Atriangular pane of glass has a height of 30 inches and an area of 270 square inches . what is the length of the base of the pane

Can some one me with these questions

5. (04.07)which of the following exponential functions goes through the points (1, 12) and (2, 36)? (2 points)f(x) = 3(4)^xf(x) = 4(3)^-xf(x) = 3(4)^-xf(x) = 4(3)^x

Aright cylinder has a diameter of 8 m and a height of 6m. what is the volume of the cylinder