Cot x if sin x cot x csc x = sqrt 2

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.

Me. i can't figure out this question. give an explanation too. .

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)