Could someone please help me?

x =

100
120
140

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 is always true about a positive integer raised to a negative odd power?

Yo need asap pls ! markin da brainiest too !