Answer
a. Positive
b. Positive
Work Step by Step
a. subtracting a negative number, in essence, cancels out the negative sign, thus the resulting number is positive, So, adding to another positive number will result in a positive total.
e.g.
$13 - (-11) = 13 + 11 = 24$
b. two numbers with the same sign multiplied or divided to each other result to a positive number, as the negative sign gets canceled.
e.g. $(-1)/(-4) = 0.25$
