Brainliest + 20 points! need urgent !

use the simple interest formula, i = prt, to find the simple interest:

julia invested $4,000 in a mutual fund with the simple interest rate of 3.5% per year. how much interest would she earn after 2 years?

a.
$140

b.
$280

c.
$1,400

d.
$2,800

$280

Step-by-step explanation:

I=PRT/100

I=$4,000×3.5×2/100

28,000/100

280

The interest after 2years is $280

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is