echelon method and let z be the parameter 3x+y-z=0, 2x-y+3z=-7

Given y = 2x2 - 10x. Find all real values of x for which y = - 3.

Find the integers: the sum of the three is 21 more than 2 times the smallest

What is the anyswer to this quiestion 9 + 10

A baseball pitcher won 80% of the games he pitched. If he pitched 35 ballgames, how many games did he win?

The present value of the money in your savings account is $420, and you're receiving 3% annual interest compounded monthly. What is the future value in two months?

There are 232 people waiting in line for an amusement park ride. Each car on the ride will be filled with 5 people. How many cars are needed to hold all the people waiting in line? TRY IT

An engineer is designing an arch-shaped gate for the entrance to an amusement park. The gate must be 80 feet wide and 25 feet tall. What will be the equation of the parabolic shape of the gate?

0.87 written as fraction

According to the census​ bureau, 64.5% of americans owned their own home in 2013. a local real estate office wants to see if this is the case for its area.

What is 3,875,462 rounded to the nearest hundred thousand?