This image shows a square pyramid.

What is the surface area of this square pyramid?

36 ft²
72 ft²
78 ft²
84 ft²

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?