What monthly compounding nominal interest rate is earned on an investment that doubles in 12 years

r=5.78 %

Step-by-step explanation:

Given

time t=12 years

Investment doubles in 12 years when compounded monthly with r rate of interest

where A=amount

P=principal

r=rate of interest

n=no of times interest is compounded per unit time t

t=times

here A=2P

thus

r=0.05789

r=5.789 %

y < -3

step-by-step explanation:

-3y - 2 > 7

-3y -2 + 2 > 7+2

-3y > 9

-3y/-3 < 9/-3   (change the inequality sign when multiplying or dividing by a negative number)

y < -3