<h3>
Answer: -10</h3>
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Work Shown:
First we need to evaluate f(3)
f(x) = -x^2 + 2x
f(x) = -(x)^2 + 2(x)
f(3) = -(3)^2 + 2(3) ... replace every x with 3; apply PEMDAS to simplify
f(3) = -9 + 6
f(3) = -3
Then we subtract 7 from both sides
f(3) - 7 = -3 - 7
f(3) - 7 = -10
Answer:
Step-by-step explanation:
Discount = 45 - 38.20 = $ 6.80
Discount % = 
= 
= 15.11 %
Percentage of savings = 15.11%
Answer:
y=1/2x+6
Step-by-step explanation:
y=mx+b
mx = slope = 1/2
b = y-intercept = 6
The third one I think I’m sorry if I get this wrong
{y|y€ R hope this helps I had to search it up but I recommend you use mathaway it could help you figure it out
