X+y=20 3x-3y=30 Which values of x and y satisfy this system of equations?

20 in. 12 in, +5 in. 13 in. What is the surface area

Markus decides to return 3 shirts costing $19 each to a clothing store. While there, he decides to purchase 1 pair of shoes at $45 and a raincoat for $62.75. The clerk charges him 5% tax on the amount due after returns. What does he owe the clerk?

Round off 0.267 to one significant number

What is the APY for 6.5% compounded daily

A triangle with vertices (0,4) (3,7) and (5,1) is translated a distance of 2 units upward. What are the new coordinates?

A square pyramid is shown. What is the surface area? A square based pyramid, with bases labeled 3.5 centimeters and side length of triangle labeled 7 centimeters. 19.25 cm2 30.625 cm2 49.625 cm2 61.25 cm2

What is the end behavior of the function f (x) = 2x^4 + 3x^3 - 9x^2 + 65x - 586?

I'm trying to solve 2x^2+3x=2

Suppose that a company claims that its batteries last 240 hours on average. It took many large samples, and each time the mean number of hours was outside the 95% confidence interval.

Sam added two fractions together and got 7/8 as the answer. Write down two fractions that Sam could of added.