Is the ratio 2.5: 3.5 proportional to the ratio 12: 5

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

1) what is the measure of the exterior angle, ∠uvw ? 2) in triangle man, what is the measure of the exterior angle at n (in degrees)?

Eliza wants to make $10,000 from her investments. she finds an investment account that earns 4.5% interest. she decides to deposit $2,500 into an account. how much money will be in her account after 14 years?