Which of the following ratio pairs forms a proportion?

³/₅=¹⁵/₂₆
¹⁷/₂₀=⁵¹/₆₀
³/₈=⁶⁵/₁₆₀
⁴/₇=¹²/₂₈

Answer 2 is the only answer in which the two ratios would be the same with a common denominator.

The question from the test: Mathematical Reasoning GED.

The line connecting points (3,-6) and (-9,2) has slope:

A line with the coordinates (7,y) and (-2,-4) has slope ³/₄. What is the value of y?

XY is called a:

XY is called a:

Solve for b:

a = 14
b = ?
c = 50