Answer:
Step-by-step explanation:
Line contains the points (4, 5) and (9, 7).

Arc Length: Theta × r
Sorry, there's no symbol theta in here. So I wrote theta. It's greek symbol.
Answer:
I couldn't
The ones I used to be friends with now all hate me lol ;-;
Step-by-step explanation:
X / x + 5 = 8 / 12
x / x + 5 = 2 / 3
3x = 2(x + 5)
3x = 2x + 10
x = 10
Check:
x / x + 5
10 / 10 + 5
10 / 15
2 / 3 :)