Give accurate answer. i will give brainliest. 20 points for answer. you have to travel 3/4 mile to get home. each city block is 1/20 mile long. how many blocks do you have to travel?

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.