Write the two statements that form each biconditional. 6. Two lines are perpendicular if and only if they intersect to form four
right angles.
7. A whole number is divisible by 3 if and only if the sum of the digits of the whole number is divisible by 3.
8. A whole number is an odd number if and only if it is not divisible by 2.
9. A person lives in Alaska if and only if the person lives in the northernmost state in the United States.

step-by-step explanation:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

step-by-step explanation:

given that megan owns a clothing boutique.

the profits of 2010, 11, are recorded and shown as follows:

years since     2010 0     1     2     3       4       5

profits made in 1000's   39       84     111     120   111     84

we find that profit gradually increases form 2010 to 2013 upto 120,   then starts decreasing.

the profits for 2012 and 2014 are the same while that of 2011 and 2015 are also the same.

this shows that there is symmetry about the line profit = 120000

hence answer is:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

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answer:

c 60% on edg

i think 5 miles per hour

step-by-step explanation:

i dont know

step-by-step explanation: