Find the surface area of the regular pyramid.

help me please..

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

Graph the linear function using the slooe and y intercept

Find the solution set for this equation: t^2+7t=0 separate the two values with a comma.