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Which expression is equivalent to $4(5s)$ ? $\newline$ Choices: $\newline$ (A) $s + 9$ $\newline$ (B) $5s + 4$ $\newline$ (C) $s + 20$ $\newline$ (D) $20s$

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Multiplication with rational exponents

Full solution

Q. Which expression is equivalent to

4(5s)

?

\newline

Choices:

\newline

(A)

s + 9

\newline

(B)

5s + 4

\newline

(C)

s + 20

\newline

(D)

20s

Distribute $4$ : Distribute the $4$ across the term inside the parentheses. $\newline$ To distribute a number across terms inside parentheses, multiply the number by each term inside the parentheses. $\newline$ $4(5s) = 4 \times 5s$
Perform multiplication: Perform the multiplication. $\newline$ Multiply $4$ by $5s$ . $\newline$ $4 \times 5s = 20s$
Match with choices: Match the result with the given choices. $\newline$ The result from Step $2$ is $20s$ , which needs to be compared with the given choices to find the equivalent expression.

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