Which number has 21 as a multiple? 2 6 7 11

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.

What percent of the circle below is shaded?

What is the anwers for 9+2x=5x-3-x