Cual es valor absoluto de -7​

Find dy/dx using implicit differentiation ln(20+e^xy)=y

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.

Select the number of ways in which a line and a circle can intersect