What is the estimated product of two numbers that are not multiples of ten is 2800?

Find the domain of the following expression: 1/(√x)-2

The formula for the volume of a right square pyramid is given below, where a is the side length of the base and h is the height.

Acollege is selling tickets for a winter fund-raiser. one day, krissa sold 14 adult tickets and 8 student tickets for a total of $376. the next day, she sold 7 adult tickets and 11 student tickets for a total of $272. krissa wanted to find the price of one adult ticket, a, and the price of one student ticket, s. she wrote and solved the following system of equations.