Work out the sum of the interior angles of any quadrilateral.

A 10-ft ladder is leaning against a house when its base starts to slide away. by the time the base is 3 ft from the house, the base is moving at the rate of 7 ft/sec.

Guess-jordan elimination - x+6y=20 -x+3y=8

A golden rectangle is 32cm long. The ratio of length to width is (1 + square root of 5) : 2. What is the width of the rectangle in simplest radical form?

If y = - 10 then solve y = x + 12

Sunny earns $22.75 per week delivering newspapers. He worked as a delivery boy for 3 weeks. He also earned $32.75 last month doing chores around the house. He spent $14.25 of his total earnings to download music on his mobile device.

7 is 1/10 of is it 1 / 10

The rocket that carried the curiousity rover to mars traveled at a speed o 21,000 miles per hour. what is the speed to the nearest mile per second

Create an inequality that represents the verbal description below The product of ten and a number is greater than the difference of four times the number and two.

Kristy spent 4 hours at the gym last week. if 5 over 6 of the time was spent jogging, how much time did she spend jogging?

2. 4xyz - 3yz + zxy (18)