The area of a triangular shaped kite is 210 in square and the length of it base is 15 in. What is the height of the kite

What kinds of numbers make up the set of numbers called the real numbers? give examples when you explain a number type. there are a limited set of types of numbers, but an unlimited number of examples of these numbers.

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

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.