When a= -5 and b = 3, the value of the expression is __

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

At a local museum, the total price for one adult and one child is $11. mrs. smith paid for herself and her three children. she spent $19. record the system of equations to be solved and then find the price of an adult and child ticket using either elimination or substitution.

The diameter of the moon is about 3500 km. approximate the surface area of the moon using the formula for the surface area of a sphere, s = 4? r^2. write your answer in scientific notation.