Answer: r + 6
Step-by-step explanation:
Shown in the question, r represents the numbers of marbles that Rory has. Conrad has 6 more marbles than Rory, which means than is r + 6.
Answer: Required expression : 
Smallest number = 27
Step-by-step explanation:
Let the three consecutive number be n-1 , n , n+1 .
Since , the sum of three consecutive numbers is 84.

Remove parenthesis

Simplify

Divide both sides by 3, we get

That means the three consecutive numbers would be (28-1) , 28 , (28+1)
i.e. 27 , 28 , 29.
Hence, the smallest number is 27.
Answer:
B
line n has slope equal to zero
I think it's either 8 (16/2=8) OR 32 (16x2=32)
Answer:
0.23 percent and 0.54 percent.
Step-by-step explanation: