Can someone right it out imma learnin

I = $252

R = 7%

P = $900

Find T?

Make T the subject

T -> x R -> x P = I

I -> / P -> / R = T

T = I/PR

T = 252/(7% x 900)

T = 252/63

T = $4

4 years

Step-by-step explanation: Begin by writing the interest formula.

Interest = principal x rate x time

Filling in the formula, the interest is $252, the principal is $900, the rate is 7% or .075 and we don't know the time so we use the variable t.

252 = (900)(.07)(t)

On the right side of our equation, we multiply 900 times .07 to get 63 and we have 252 = 63t. Now to solve for t, we divide both sides of the equation by 63 to get 4 = t which means that our principal must be invested for 4 years to earn $252 in interest.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6