Use tan inverse 5/12, that should be the answer because if the triangles are similar, they have the same angle measures. You can also use sin inverse 5/13 or cos inverse 12/13. I recommend using two of the three, one to get the answer and other to check.

Opposite of 12? it must be 21 then

sum = 14 + 21 = 35

D.

The graph is widening by a factor of 2, or growing half as fast. Check by plugging in 2 or 4.

**Answer:**

x=5

**Step-by-step explanation:**

Ok so put them equal to each other

2x+12=3x+7

subtract 12 from both sides

2x=3x-5

subtract 3x from both sides

-x=-5

divide both sides by -1

x=5

Have a wonderful day/night

**Brainliest please.**