N / 4.6 = 1.05
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Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

On a piece of paper graph f(x)=5•(0.4)^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.