How to find the exact area of this triangle.

Use the data on the dot plot to answer the question. how many people read for more than three hours last week? i'm on a unit test review

On saturday a souvenir shop had 125 customers. sixty four percent of the costumers paid with a credit card. how many costumers paid with cash?

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank