Okay what do you need help with?
The sum is 4a+2b. Hope this helped.
Rational numbers can be negatives and positives. When negative, they are called integers. If you add one negative number that is higher than the positive number, it can be negative. For instance: -63+3= -60
The picture Won’t load for me message me if it loads for you.
From the origin you have to go 3 right put a dot and seven down put a dot, 13 down and one right ? Not sure