At a coin collector shop, a rare US coin was recently marked up 50% and is now selling for $210 how much was the coin before the mark up?

Solve the system. y = 2 - 6x 12y - x = 1

5x - 15 = 20 The first step in solving this equation is to ... subtract 15 from both sides of the equation. add 15 to both sides of the equation. divide both sides of the equation by 5. add - 20 to both sides of the equation.

Find the slope. - 8x + 5y = 20

The recipe for mint chocolate ice cream requires 2 1/4 cups of cream for 5 people. You need ice cream for 15. How much cream do you need?

A bag of marbles has 5 blue marbles, 3 red marbles, and 6 yellow marbles. A marble is drawn from the bag at random. How many possible outcomes are there? 3

Evelyn gave a $3 tip to the person delivering her $15 pizza. What percent of the cost of the pizza was the tip that she paid? A. 3% B. 5% C. 15% D. 20%

The Frederick country fair costs $15.00 to get in and $2.50 per ride, while the Montgomery County Fair costs $10.00 to get and $3.00 per ride.

1 3/5 / 5/8 find the quotient.

What is the solution to the system of equations represented by the two equations? y=2/3x y=-2/3x+4 l l V V (?,?)

98+g=150 what is the solution to the equation