What is the exponent in the expression 45?

If 90° < θ < 180° and cotθ = -1/3, then cscθ =

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.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?