Find the exact value of tan A in simplest radical form

What is the equation of the graph that represents f(x)=x^4 stretched vertically by 2 and shifted up 3 spaces

In the diagram of circle a what is m

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.