4c(2x+3) is my question. how to answer?

Point e(−5, 3) and point d(−4, −3) are located on the grid. which measurement is closest to the distance between point e and point d in units? a) 6.1 units b) 6.3 units c) 6.5 units d) 6.7 units

How can you decide witch operations to use to slice a two step equation

Abcd is a square. what is the measure of angle bac