<h2>
Answer:</h2>
Both angles will add up to 180°, so we set up a equation where (4x - 19)° and (6x + 9)° equal 180°.

Our answer is <em>x = 19</em>.
Answer:
10.7 ft (i think that was supposed to be 7 if not plug in the correct shadow height for 7 to find the height of the tree)
Step-by-step explanation:
5/7 = x/15
multiply by 15
x=10.7 ft
Answer:
1180
Step-by-step explanation:
(42×28)+4 =x
x= 1180
A decimal problem may be a addition problem you would need to regroup the hundredths to solve, like a money problem