A. $39.
B. $2.50.
C. Sinea.
Answer:

Step-by-step explanation:
The angle on a straight line is always 180 degrees.
Thus,

Remove the brackets:


Subtract 24 from both sides:


Divide both sides by 12:


Answer:
c
Step-by-step explanation:
The equation would be x+3=y
nancy's age + three years= Jen's age
Answer:
1. 8.5 x 10^8
2. 93/10000 - 4 x 10^12
3. 9.95 x 10^12
Step-by-step explanation: