Answer: 30,000 months or 2,500 years
She'd better start saving more haha.
Step-by-step explanation:
[tex]Goal=4.2x10^6\\Savings/month=1.4x10^2[/tex]
[tex]\frac{4.2x10^6}{1.4x10^2} =(\frac{4.2}{1.4})x10^(^6^-^2^)=(3)x10^4=3x10^4 =30000 months=\frac{30000}{12}=2500years[/tex]