Answer:
1. C
2. C
Step-by-step explanation:
1. 5x+12=57
Subtract 12 from both sides
5x=45
Divide both sides by 5
x=9
2. 7-4x=12-3x
Combine like terms =
-4x+3x=-12-7
x=-12-7
x=19
<h2>
Answer:</h2>

<h2>
Step-by-step explanation:</h2>
In this exercise we need to make a division and evaluate the new function at
. so we have two functions, namely:
Therefore:

So:

We have been given that Marcus works for 26 hours each week and 48 weeks each year.
Thus in a year he works for
hours.
Now, we have been given that Marcus earns $8.40 per hour.
Therefore, in 1248 hours, he earns

Marcus has to pay tax if he earns more than $10,000. Now we have calculated that he earns $ 10483.2 which is higher than $10,000.
Therefore, Marcus has to to pat tax.
Format: y = mx + b
b = y intercept
Answer: y intercept is -7
Yes -5/2 is lest than -2
(-5)/2 < -2
-2.5 < -2
true