Answer:
D. 
Step-by-step explanation:
The given expression is;

This is the same as;

The denominators are the same.
Subtract the numerators and write one denominator;

Rewrite to get;

Answer:
x = 5
Step-by-step explanation:
(7x + 16) = 90 - 39
7x + 16 = 51
7x = 51 - 16 = 35
x = 5
Answer:
2.04
Step-by-step explanation:
Equation: 6.05n=12.4=
Answer:
m∠7=34°
Step-by-step explanation:
m∠2=m∠8=146° because alternate interior angles are congruent.
m∠7=180-m∠8=34° because it is a linear pair.
Use the Pythagorean therm , you know the a^2+b^2=c^2