Step-by-step explanation:
his father's age= 4x
his mother's age= 4x- 7
his age= x
x+4x+4x-7=101
x+ 4x+ 4x= 101+ 7
9x= 108
= 
x= 12
Tesfa is 12 years old
Answer:
the answer is C. $38.84
Step-by-step explanation:
The answer:
X1 = -1 X2 = 3
Explanation: Down the images
Answer:

Step-by-step explanation:
Since there are 360 degrees in a circle, we can set up the following proportion:

Answer:
troll
Step-by-step explanation:
troll!!!!!!!!!!!!!!!!!!!!!!