Can some one me correct answers only will give brainliest

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.

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

Percent increase and decrease. original number: 45 new number: 18