A jeweler has five rings, each weighing 18g, made of 20% silver and 80% gold. He decides to melt down the rings and add enough silver to reduce the gold content to 60%. How much silver should he add?

What is the equation of a line, in general form, with a slope of - 2 and a y-intercept of (0,-8)

Paul has 1/2 gallon of water. He puts an equal amount in 5 bottles. Then he uses 1/3 from 1 bottle on a flower. What fraction of a gallon does Paul use on the flower?

The equation h=-16t^2 + 32t + 9 gives the height of a ball, h, in feet above the ground, at t seconds after the ball is thrown upward. How many seconds after the ball is thrown will it reach maximum height? What is its maximum height?

A CD costs $15.50 before tax. What is the total cost after a 6% sales tax is added?

A graphing calculator displays 1.89•10

You have a coupon good for $6 off the price of any large pizza. you also get a 15% discount on any pizza if you show your student ID how much more would you pay for a large pizza if the cashier applies the coupon

What is the absolute value of |5|-7

Equation for (5,15) (3,7)

Ann and Gia are eating grapes. Ann eats 10 green grapes and 6 red grapes. Gia eats the same number of grapes as Ann. Match each person to her grapes.

Jace is placing a carpet in his square shaped room. Room measures 144ft squared what is the perimeter of the living room