Answer:
128
Step-by-step explanation:
1. 42
2. 77
3. 87.75
4. 117
5. 119
6. 89.25
7. 39
8. 58.5
9. 218.75
Good Luck!
30, radius is equal to half the diameter, so to get diameter from the radius, multiply the radius by two.
7(7x-4)
We can factor a 7 from each term
49x = 7*7x
28 = 7*4
49x -28