if you earn a maximum of $750 per month and a minimum of $420 per month and save 5%, how much will you save?
a. at most $21.00 and at least $17.00 per month.
b. at most $30.00 and at least $19.50 per month.
c. at most $37.50 and at least $21.00 per month.
d. at most $42.00 and at least $37.50 per month.