What is the value of the y coordinate of the solution to the systems of equations x+2y=9 and x-y=3

A radio station broadcasts a signal over an area with a radius of 50 miles. The station can relay the signal and broadcast over an area with a radius of 75 miles.

Evaluate the following expression 5 + 3 x 7 + (5 - 3) ² : (7 - 3)

What is the formula of a rectangle combined with a triangle?

Which of the following is a polynomial with roots 5, 4i, and - 4i? A.) f (x) = x3 - 5x2 + 20x - 16 B.) f (x) = x3 - 5x2 + 16x - 80 C.) f (x) = x3 - 20x2 + 5x - 16 D.) f (x) = x3 - 16x2 + 80x - 5

A truck with a heavy load drove from Boston to New York at 40 mph. After unloading, it returned from New York to Boston at a speed of 60 mph. What was its average speed for the whole trip?

Working in separately, three carpenters can make three chairs in three days. How many chairs can 7 carpenters working at the same rate make in 30 days?

If f (x) = x - 4, what does f (3) represent? the value of (x - 4) when x = 3 the value of x when (x - 4) = 3 the value of 3f (x) when x = 3 the value of f (x) when (x - 4) = 3

Erica spent a total of $48.90 buying supplies to make smoothies. She bought a blender for $30 and bought 6 pounds of strawberries. What was the price per pound for strawberries?

In 1980, the United States' national debt exceeded $9 billion dollars. Express the exact dollar amount in scientific notation.

Each day a company use one half of a box of paper how many boxes would they have used after 8 days