One year the attendance at the superbowl was 79,401 the following year, the attendance was 89,916 .use words to explain the relationship between the digit 9 in 79,401 and the digit 9 in 85,916.

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^