How do you solve this system of equations?

18x^2+12xy-18y^2=30

-x^2-3xy+y^2=3

A bracelet is made of 14 red beads and 19 gold beads. A necklace is made of 84 red and 133 gold beads. Do the two pieces of jewlery have the same ratio as red beads to gold beads

Write a set of four ordered pairs that represents a linear function. Then give the function rule.

Hey, guys how to convert dates?

If f (x) = 2x^2+5 √ (x-2) What does f (3) = ?

A boa constrictor is 18 inches long at birth and grows 8 inches per year. Write an equation that represents the length Y (in feet) of a boa constrictor that is X years old.

A survey found that 9 out of 100 people are left-handed. On the basis of this survey, how many people in a group of 8000 are likely to be left-handed? A. 900 B. 800 C. 720 D. 72

If 80% of an item is $200.00 what is the original cost

The volume of a closet is 36 cubic feet its height is 6feet and its length from to back is 2 feet. What is the width of the closet

What is the simplified form of 3 square root 135

A credit card company applies a 6% fee on all transactions under $10. You purchased coffee for $4.80. What fee amount will be applied to your bill?