Answer:
Step-by-step explanation:
Answer:
p= s +s +s
Step-by-step explanation:
perimeter of equilateral triangle=sum of all sides
Answer: The number of points added for r right answers is 12r. The number of points taken away for w wrong answers is 4w, so Olga's total points will be
... 12r -4w
To win, she needs this number to be more than 400. Your inequality is ...
... 12r -4w > 400