Which relationship is always true for the angles r, x, y, and z of triangle ABC?

x + z = y

180 degrees - x = r

x + y + z = 180 degrees

x + y + z = 90 degrees

Amy had 4 pieces of string that were cut in various lengths. the string lengths are 407.3, 470.8, 407.1 and 470.3. which shows the lengths in order from least to greatest?

What is square root of 76

You buy the same number of brushes, rollers, and paint cans. Write an expression in simplest form that represents the total amount of money you spend for painting supplies

Eduardo solved the following inequality, and his work is shown below: -5 (x + 4) + 21 ≥ - 3 + 4 (x - 8) -5x - 20 + 21 ≥ - 3 + 4x - 32 -5x + 1 ≥ 4x - 35 -9x ≥ - 36 x ≥ 4 What mistake did Eduardo make in solving the inequality?

Paul has a board that is 1,200cm long. witch of the flowing measures is equivalent to 1,200cm?

An antelope Can run at a speed at 61 mph. What is the speed in yards per second? Round to the nearest hundredth.

Which of the following would be the most effective means of controlling current water pollution of United States surface waters?

How do you write 151% as a fraction or mixed number in simplest form?

Sam and his two brothers want to fly to Boston. About how much will Sam and his brothers save buying the less expensive fare? Skies the limit airline $319 In the clouds airlines $405

The sum of two numbers is 65 and the difference is 13. what are the numbers?