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3 years ago

14

Sharon spends $80.00 at the computer store. The tax on her purchase is $4.00. Use a proportion to find the tax rate as a percent

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1 answer:

Korvikt [17]3 years ago

3 0

Srry but I think the answer will be 20

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Given f(x) = 10 -2xfind f(7). –4 3 7 56

strojnjashka [21]

Answer: $f(7)=-4$

Step-by-step explanation:

1. You have the following function given in the problem:

$f(x)=10-2x$

2. Then, to find $f(7)$ asked in the exercise, you only need to substitute $x=7$ (which is the input value) into the given function.

3. Therefore, keeping the above on mind, you obtain that $f(7)$ is:

$x=7$

$f(7)=10-2(7)$

$f(7)=10-14$

$f(7)=-4$

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