Erica spent $115 on school she actually spent $82.50 what is erica's percent of error

Which statement best describes the polynomial

Explain how you do each step what term makes it inconsistent y=2x - 4 ?

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.