Addie likes to play basketball. addie scored twice as many points in the game as her friend, alyssa. if alyssa scored 7 points, and the total number of points scored in the game was 52, how many points were not scored by the two girls?
a) 14
b) 21
c) 31
d) 45

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.

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