Is that all the information privided? Im tring to figure it out but I feel like im missing something.
Step-by-step explanation:
d = 4m +7n
d - 4m = 7n
(d -4m)/7 = n
Letter D. because any opposite number of a negative has to be a positive!
I divided $.55 by 777 and got 0.00585 cents per apple. Then I mulitplied 0.00585 by 999 and got $5.85.