Conrad has 6 more marbles than Rory. If r represents the numbers of marbles that Rory has, which expression represents the number of marbles that Conrad has? A. 6r B. r – 6 C. 6 – r D. r + 6
Since r represents the amount of marbles Rory has, and Conrad has 6 more, you would add 6 to Rory's number to get the the number of marbles Conrad has.