PLEASE HELP!!!

what is the value of the expression 2/5m−1/3 when m = 3?

Alarge rectangle is divided into four smaller rectangles.

30 in the diagram line e and made parallel to each other and line p and q are transversal. use properties of special angles formed by parallel lines and their transversals to find the missing angle measures. m< 3=65 m< 15=120 m< 7= m< 4= m< 6= m< 1= m< 16= m< 18= m< 21= m< 10= m< 11= m< 12=

I’m really confused and need to learn this