The ratio of the measures of the exterior angle of a pentagon is 2: 3: 4: 4: 5. find the measure of tge largest interior angle

Which letters from the table represent like terms? a and b b and c a and d b and d

Can someone tell me if this is perpendicular? !

For the chance to be team captain, the numbers 1-30 are put in a hat and you get two chances to pick a number, without replacement. which formula correctly shows how to find the probability that you choose the number 1 and then 2?