Y=1 1/4(1.25)x +9, add 8x to each side and then divide each side by 6
1200 - 450 = 750 liters that he needs to fill up
81.5 x 750 = €61,125
€61,125 x 0.075 = €4,584.38 (discount as a loyal customer)
total paid with discount = €61,125 - €4,584.38 = €56,540.62
answer
Mr. Leonard gets €4,584.38 discount on his purchase
I believe it would be the second option....
James will need 115.08mg of medicine at the start of day 6.
