Use I = PRT to solve. (time in years)
P= $400
R= 9%
T= 0.25 years Find I

(remember, 9% = 0.9 in decimal form

Simple interest is $ 9

Solution:

Given that,

P = $ 400

T = 0.25 years

The formula for simple interest is:

Where,

I is the simple interest earned

R is the rate of interest in decimal

T is the number of years

Substituting the values we get,

Thus simple interest is $ 9

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

hdjd

step-by-step explanation: