Please help me with this question!!1

Which of the following graphs represents the function f(x) = 2^x

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.

Consider circle o, where and . m∠bpd °. °.