Which of the following represent the addition property of equality? if a = b and c = d, then a + c = b + d. if a = b and c = d, then ac = bd. if a = b and c = d, then ac + b = bd + a. if a = b and c = d, then a + b = c + d.

Suppose you want just guess at the answers in a 5 question multiple-choice test. each question has 3 responses and only one is correct. what is the probability of getting two questions right just guessing? 20 points 0.3275 0.2753 0.7532 none of the above

Me. i can't figure out this question. give an explanation too. .

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?