Answer:
30
Step-by-step explanation:
29 - 19 = 10 (difference)
triple 10 now:
10 x 3 = 30
Answer: Third option
Step-by-step explanation:
You have the function:

Then, if the value of x increases by 1, you obtain:
-Rewrite the function:
-Substitute values for x into the function and observe what happen to y. Then:
x=1
x=2
x=3
The value of y is doubled.
Answer:
-50
Step-by-step explanation:
<span>7(6x-4)+2x
=42x - 28 + 2x
= 44x - 28</span>