Which pair of equations represents two perpendicular lines?

A. y=-7/8x+3 and - 7y=-8x

B. 8y=3x+40 and y=8/2x-1

C. 5y=15-2x and 2/5x-4=y

D. y=9x+3 and y=9x-1/3

The volume of a cone is cubic inches. Its height is 12 inches. What is the radius of the cone?

A jet flies 3,360 miles from New York to Paris in about 2.7 hours. About how many hours would the jet take to fly 5,687 miles from Paris to Rio de Janeiro?

Select the graph of the solution. Click until the correct graph appears. x > 4 U x < - 2

Write the prime factorization of 450 using exponents

Charlie is late for the hot-air balloon rally. He stops his car 65 meters from a hot-air balloon already in flight. While Charlie watches the balloon ascend, he tilts his eyes up from 28º until he is watching at an angle of elevation of 66º.

Itmar is 63 in tall in August and grows one half each moth through may how tall is he

URI made four goals in the soccer game the rest of the team made six goals right the radio of Yuri school to Total goals

What is the product of 0.9 x 0.5

Ms. Robinson gave her 12 minutes to read. Carrie read 512 pages in that time. At what rate, in pages per hour, did Carrie read?

The perimeter of the original rectangle is 16 feet. A small rectangle has a length of 6.2 feet and width of 1.8 feet. A larger rectangle has a length of 12.4 feet and width of blank.