Martin knows that the relationship between the number of gallons of gasoline in his car using, G, and the number of miles he travels m is proportional

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

For a field trip to the zoo, 4 students rode in cars and the rest filled nine busess. how many students were in each bus if 472 students were on the trip