Select all the expressions that are equivalent to –25(15 – 20d + 5c). –30 + 40d – 10c
–6 + 8d – 2c
–2c + 8d – 6
6 – 8d + 2c
–2(3 – 4d + c)

f(x) is the value of the function. b is the value of the function when x equals zero or the y-coordinate of the point where the line crosses the y-axis in the coordinate plane.

step-by-step explanation:

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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.

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b. hoped i'm right lol

step-by-step explanation: