Which equation represents a proportional relationship?
a) y =
2
5
x
b) y =
1
3
x + 5
c) y = −3x − 1
d) y = 2x + 0.5

I'm so close to finishing all these.

Given: ac and db are diameters. m∠3=

You have 12 balloons to blow up for your birthday party. you blow up 1/3, and your friend blows up 5 of them. what fraction of the baloons still need blowing up