Express 2a^-4/ 5b^-2 with positive exponents.

Brent needs to paint a logo made using two right triangles. the dimensions of the logo are shown below. what is the difference between the area of the large triangle and the area of the small triangle? (1 point) select one: a. 4.5 cm2 b. 8.5 cm2 c. 16.5 cm2 d. 33.0 cm2

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Yvaries inversely as x. y =12 when x=5. find y when x=4