The sum of 31/4+42/4= 18.25
<u>Step-by-step explanation</u>:
- The denominators are same.
- Then add the numerators and keep the denominators same.
The sum of (31/4) + (42/4) = (31+42)/4
⇒ 73/4
⇒ 18.25

Where r is the radius of the circle.
Answer:
12
Step-by-step explanation:
x=2 was multiplied by 4 to get to x=8 so you multiply y=3 by 4 to make it y=12

Subtract 50 from both sides:


hope this helps!