What could be the Principal Amount, if rate if interest is 16% and $18 is earned as an interest after 3 months

The principal amount is $37.5

Step-by-step explanation:

Rate of interest= 16%

Rate of Interest = $18

Time = 3 months

Interest = (principal amount x rate of interest x time) /100

18 = (p x 16 x 3) /100

1800 = 48p

P = 1800/48

P = 37.5

The principal amount is $37.5

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )