Jennifer has decided to start doing crunches as part of her daily exercise routine and is using the bar chart below to keep track of how many she has done each day. How many crunches will she do on day n?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.