The minimum value of 2x 1 is how is this written in a algebraic expression?

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

Find the slope of the line y =8/9x + 1.

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.