Pls help 15 points pls hurry

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.

Which statements are true about additional information for proving that the triangles are congruent check all that apply

Find a third-degree polynomial equation with rational coefficients that has roots -2 and 6+i