Solve the quadratic equation using the quadratic formula 5x2 - 4x - 1 = 0.

For which values of P and Q does the following equation have infinitely many solutions? Px-37=Qx-37

What is the unit rate of a 13-oz. package of pistachios that costs $5.99?

A fossil is 172 mm long how many meters long is it

Find the solution set (x, y, z) of the system: 3x-2y+4z=6, 2y-3z=20, 6z=12

Four more than twice a number is 18, what is the number?

How many weeks are in 5 years

What does the equation y = x2 represent as a curve in the set of real numbers2?

The printer charges $4 per book to print it, and you spent $3500 on advertising. you sell the book for $15 a copy. How many copies must you sell so that your income from sales is greater than your total cost?

A roller coaster can accommodate 346 rider in 20 minutes. How many riders could ride in 90 minutes?

You have $12 to buy five goldfish for your new fish tank. Write and solve an inequality that represents the prices you can pay per fish.