Answer:
8% is equivalent to the fraction 8/100
Step-by-step explanation:
120 + 90 = 210 points
350 - 210 = 140 OR
351 - 210 = 141 (if it must be more than 350, you need <em>at least </em>351 points total, or 141 more points, to get a grade B)
How does your figure look like?
Account balance is not proportional to the number of weeks.