Which of these statements isn´t always true? a. a + (-b) = -b + a b. a - (-b) = (-b) - a c. (a+b) + (-c) + a + b [b+ (-c)] d. -(a) = a

Find the quotient with the restriction.

What is 1/3x5 on anuber line what does it look like on a number line

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why? a. point c could be the interior of aob but it is not the only case b. point c is the interior of aob c. point c is not the interior of aob d. the given is not possible for the plane geometry answer