PLS HELP WILL MARK BRAINLIEST AND SHOW WORK/DESCRIBE

Answer:
65
Step-by-step explanation:
20 + 15 + 15 + 15
Y = 15x + 5
X = each day (after the first) you are charged $15
15 + 5 is charged in the first day = 20
Y = Total
Your Y intercept is 5
Your slope is 15
Don’t go into negatives because money and time can’t be negative