A number, rounded to two significant figures, is 800.
What is the upper bound of that number?

Which point is on the line y=-2+3? (-2,-1) (3,3) (3,-3) (-3,-9)

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

The weekly revenue for a company is r = 3p^2 + 60p + 1060, where p is the price of the company's product. what price will result in a revenue of $1200.