Answer:
A reasonable estimate close to $210 is $350.
Step-by-step explanation:
Actually Michael has $6400 in savings account and he needs to save each month to achieve the goal of $19000 in 5 years. Then, he needs to save
19000-6400 = 12600 dollars in 5 years.
Now, 5 years are 5*12 = 60 months. Then to calculate the estimate he needs to save per month we need to divide the amount of money that he needs to save by the number of months.
12600/60 = 210. Then, he needs to save in his savings account $210 each month to be able to pay his first year of college in 5 years. In the options, $200 per month is not enough to save the total amount and there isn't an option of $210, then a reasonable estimate close to $210 is $350.