A. Input 10days of swimming /season pass =207$ / each day = 4.5x10 = 45$
Input 30 day of swimming /season pass = 207$ /each day =4.5x30=135$
Input 50 days of swimming /season pass =207$/ each day =4.5x50 =225$
B more than 46 time ->4.5B=207 hence; B=207/4.5 = 46
C if Y Axis is point of worthy value (more height more advantage )and X Axis is times of swimming so season pass is graph B and paying per day is graph C