Jonah’s family is ordering dinner. Each adult meal costs $8.50, each kid meal costs $6.75, and
each drink costs $1.75. There are a adults and k kids in the family. If everyone orders a meal and
a drink, which expression can be used to express the total cost of the meal?
A 8.50a + 6.75k + 1.75
B a(8.50 + 1.75) + 6.75k
C (a + k)(8.50 + 6.75 + 1.75)
D 8.50a + 6.75k + 1.75(a + k)