Answer:
19
Step-by-step explanation:
y=2×8+3
=16+3=19
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Answer:
f(x) = y
Step-by-step explanation:
f(x) always equals y, so the equation would be y = 7. therefore, I am pretty sure that x = y, but you may want to wait to ask your teacher. If there is more detail, message me!
Answer:
C
Step-by-step explanation:
To solve, use inverse operations:

Now we solve for both +/- 7.
x+6=7
x=1
x+6=-7
x=-13
The answer is 220 because you would just have to round 1 to 2 than everytging behind it is a zero