The net of a square pyramid and its dimensions are shown in the diagram. what is the total surface area of the triangular pyramid in square feet?
17 it
15 ft
16ft

With #! i’ve tried to figure it out but i can’t.

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.