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

What is - y=-7x+32 in slope intercept form

Round 12.34 to one significant figure

A keyboard that cost $475 is marked down 15% for a sale. How much is the savings.

If a train travels 25 miles in 2 hours and 15 minutes, what is it's average speed in miles per hour? • 10 mph • 11.1 mph • 12.5 mph • 9.1 mph

Marilyn has 4,000 one-inch cubes. She wants to pack them into a carton. The carton is 1 foot high and its base is 1 foot by 2 feet. Will all the cubes fit into the carton? Explain how you know

A sector of a circle has central angle θ=5π/6 and area 15π ft2. Find the radius of this circle.

What is the density of an object that is 2 cm wide, 1 cm high, and 5 cm long and the mass is 6.8?

What is 5 times 1and4fiths

If the circumference is 12 pi what is the area expressed in terms of pi. Group of answer choices 144 pi 6 pi 22 pi square 36 pi

How do you estimate 586-321