Answer:
x = 17
Step-by-step explanation:
3(x-12)=15
->
x-12+12=5+12
Answer:

Step-by-step explanation:
we know that
If two figures are similar, then the ratio o its corresponding sides is proportional, and this ratio is called the scale factor
In this problem the corresponding sides are
12 units and 15 units
16 units and n units
therefore

Solve for n


The answer is a. A should be correct
The answer would be A. 5x^2 + 3x + 4.