Respuesta :

Answer: 64.60

Step-by-step explanation:

lets do 6.80x9

= 61.20

for the half an hour, divide 6.80 by 2

it would be 3.40

61.20+3.40= 64.60

you do $6.80 times 9 which is $61.20
then take $6.80 and divide it by 2 which is $3.40 and add the two together to get $64.60