Which of the following is the conjugate of a complex number with 2 as the real part and −4i as the imaginary part? (6 points)

Which math sentence can be used to determine if the triangle is a right triangle?

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 really confused and need your assist me with this question i’ve never been taught