Answer:
22
Step-by-step explanation:
This is a right angle so the sum of those would be equal to 90 degrees
x + 7 + 3x - 5 = 90 add like terms
4x + 2 = 90 subtract 2 from both sides
4x = 88 divide both sides by 4
x = 22
Hopefully this helped! I used the substitution method
Find common denominators soo for example if we had 4/6-1/2
The common denominator would be 6 so
4/6 - 3/6
4-3 is 1 so
The answer would be 1/6
Answer is A) AC= 20 and angle A=37°
Dilated by factor of 4 means enlarged by 4 ( multiply by 4)
The angle stays the same no matter how much you increase or decrease the size
And AC= 5 x4= 20
