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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

answer: its the third option.

step-by-step explanation:

i just took the test.

answer: 1400

step-by-step explanation: 20 x 5 = 100 add the zero 1000 8 x 50 = 400 + 1000 = 1400

answer

b. zero

explaination:

i wasn't reading it carefully, sorry.

but it is actually 0