What expression is equivalent to 13 - (-21) ?

For a certain positive integer n, n^2 gives a remainder of 4 when divided by 5, and n^3 gives a remainder of 2 when divided by 5. What remainder does n give when divided by 5?

What are the relationships among radii, chords, tangents, and inscribed and circumscribed angles?

What's 30 times 2 and then add 6?

Maya wants to make peanut cookies. One barch makes 16 cookies and requires 2 cups of sugar and 4 cups of flour. If maya wants to make 8 cookies, how much sugar will she need?

10. Based on a random sample of 13 tire changes, the mean time to change a tire on a Boeing 777 has a mean of 59.5 minutes with a standard deviation of 8.4 minutes. For 10 tire changes on a Boeing 787 the mean time was 64.

On June 1 2013 number of hours of daylight in Anchorage, Alaska was 18 1/4 hoursthen what was the number of hours without daylight

You are constructing a frame for the rectangular photo shown. You want the frame to be the same width all the way around and the total area of the frame and photo to be 315 in. what should the outer dimensions of the frame be?

X + 13 = 7x+1 Solve for x and show steps

If 1 equals 11/11 then what does 1+1/11=

The cost C in dollars ($) for a canoe rental for h (hours) is given by C = 4.50h + 10 Nick spends $39.25 How many hours did he rent the canoe?