An animal shelter spends $5.50 per day to care for each cat and $8.00 per day to care for each dog. Angel noticed that the shelter spent $54.00 caring for cats and dogs on Monday. Angel found a record showing that there were a total of 8 cats and dogs on monday. How many cats were at the shelter on Monday?
c = cats money from = $ 5.5 c
d = dogs = 8-c money from = $ 8(8-c) money summed = $ 54
5.5c + 8 *(8-c) = 54 solve for c = number of cats