At a store, ice cream cones cost $1.80 and sundaes cost $3.30. one day the receipts for a total of 148 cones and sundaes were $360.90. how many cones were sold? how many sundaes?

X= cones; y= sundaes

1.80x + 3.30y = 360.90 (i)

x + y = 148 (ii)

from (ii) y= 148-x

1.80x + 3.30(148-x) = 360.9

1.80x + 488.4 + 3.30x = 360.9

1.5x = 127.5

x  = 85 cones

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.