Solve for X on both equations
2x - 2 < -12
Add two on both sides
2x < -10
Divide by two on both sides
2 < -5
2x + 3 > 7
Subtract three on both sides
2x > 4
Divide by two on both sides
x > 2
A. x < -5 or x > 2
Answer:
x = 40
Step-by-step explanation:
180 = 100 + x +x
180-100= 2x
80 = 2x
x = 40
Given mapping is a function.
Domain: 
Range: 
Step-by-step explanation:
By observing Marco's mapping diagram we can see that every value in time is mapped to only one value in the cost. This means that there will be no repetition or same output to two different outputs so given mapping is a function.
<u>Domain:</u>
Domain is the set of all inputs of a function. Here time is input so domain of function is:

<u>Range:</u>
Range is the set of all outputs of the function on domain so the range of the given function is:

Hence,
Given mapping is a function.
Domain: 
Range: 
Keywords: Domain, range, function
Learn more about function at:
#LearnwithBrainly
Answer:
A. ?
B. ?
C. ?
1. Different
2. Same
3. Not always
4. multiplying, same, different
5. Don't know
6. and 7. don't have any students or anything so I can't answer that
Step-by-step explanation:
I kinda went off what I knew
Hey at least I tried
Answer:
c means constant number
Step-by-step explanation:
plX make me brainliest