How do You do solving system of equations by solving for a variable

A plane flying a straight course observes a mountain at a bearing of 31.7 to the right of it's course. At a time the plane is 8 kilometer from the mountain. A short time later, the bearing to the mountain becomes 41.7

What is 4x^2+4-5x+x-2x^+8

Which number line represents the solution set for the inequality - x 24?

Why is 903*29 not a good estimate for 2700?

If AB=29cm and angle A = 25 degrees, what is AC to the nearest centimeter

Mr. Yi buys vegetables at a market. He purchases 6 pounds of potatoes, p, and 3 pounds of onions, n, for $18. Onions cost twice as much as potatoes.

What is the square root of 256?

Mark and peter went to an arcade where the machines took tokens. Marilk played 9 games of ping pong and 5 games of pinball, using a total of 29 tokens. At the same time, peter played 3 games of ping pong and 1 game of pinball using up 7 tokens.

If the side length of square ABCD is four times the side length of square PQRS, which statement is true? A. The perimeter of square ABCD is 16 times the perimeter of square PQRS. B.

Two friends are going on a vacation. The hotel room they are staying in is $140 per night. The total cost for both tickets to the theme park they are going to is $65.