Solve the system of equations below.

x + y = 8

3x + 2y = 21

What fraction is equivalent to 4/12

Light travels at 186, 282 miles per second. Based on a 365-day year, how many miles will light travel in one year? Express your answer in scientific notation to the nearest thousandth.

F (x) = 7x - 13. Find f-1 (x).

What is the y-intercept of f (x) = (3/5) ^x?

What is an equation of a line that passes through (-6,5) and (0,2)

Robert can run 1/2 of a mile in 1/15 of an hour. How many miles can Robert run in an Hour?

If the sales tax in our city is 4.9%, and an item costs $21 before tax, how much tax would you pay on that item?

The surface area of a rectangular prism is 42 cm2.

In a week karry ran 9.3 miles and Tricia ran 4.4 miles. Use mental math to find how much farther Karry ran than Tricia. Explain how you determined the difference.

What kind of function is 3y-2=x+7