Which equation represents a linear function?
equation 1: y = 2x2 + 1
equation 2: y2 = 3x + 1
equation 3: y = 5x − 1
equation 4: y = 4x4 − 1

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

3-4

step-by-step explanation:

the answer is 3-4 because both 45 and 60 has a multiple of 15.

45/3=15

60/4=15

therefore the odds against selecting a red is 4-3