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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 function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.