Answer:
15,17,19
Step-by-step explanation:
Make an equation : 
Solve the equation:



Since x=15 then the second number is 17 and then 19
Hope this helps!
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Answer: y= 0.96 + 0.18x
Step-by-step explanation: I just did the assignment
Answer:
A constant in math is a value that doesn't change. Instead, it's a fixed value. All numbers are considered constant terms.
1.

or if you mean (3x^3+5x^2+3x-7)+(8x-6x^2+6):

2.
