The total cost of swimming at a community swimming pool is made up of a membership
fee and a cost pur swim.
At this community centre. Jake pays a total
of $100 and swims 40 times. Paula pays a total of $70 and swims 25 times.
Which of the following statements is true
a) The membership fee is $20
b) The membership fee is $30
c) The cost per swim is $2.50
d) The cost per swim is $2.80​