If u(x)=-2x^2+3 and v(x)=1/x, what is the range of (uov)(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.

I’m still confused on how to work the percentages

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle