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Answer:

Step-by-step explanation:
Let
y -----> gallons of water remaining in the barrel
x-----> number of minutes elapsed
we know that
Water leaks out of the barrel at a rate of 1 gallon every 10 minutes
so

The linear equation that represent this situation is

The graph in the attached figure
Answer:

Step-by-step explanation:
Step 1: Multiply by conjugate
5/(7 - √6) x (7 + √6)/(7 + √6)
5(7 + √6)/43
Step 2: Distribute
(35 + 5√6)/43
Answer:
there is nothing to help you on
21 is a composite, because 21 x 1 = 21, and 7 x 3 = 21
61 is a prime, because it can only be multiplied by 1 to get 61
hope this helps