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which pair of ratios does not form a proportion?

group of answer choices

1: 2 and 2: 4

1: 2 and 3: 4

3: 6 and 1: 2

2: 10 and 1: 5

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

The table showed price paid per concert ticket on a popular online auction site. what was the average price paid per ticket

An isosceles trapezoid was broken into a rectangle and two triangles. what are the base and height of one of the triangles?