11 points if you answer this (pls don’t write any nonsense’

Adriveway is 40 yards long about how many meters long is it

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

In an isosceles triangle, the vertex angle is 112 degrees. what is the measure of each base. a.34 b.24 c.44 d.54