Two spheres have diameters of 20 units and 40 units. What is the ratio of their surface areas, in simplest form?

the probability that a bird is green (.30) is true

step-by-step explanation:

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2

where are the graphs?

step-by-step explanation:

no

explanation:

you can be freinds, and people but not follow people.