Two weeks ago, star bought 3 cans of tennis balls. last week, she bought 4 cans of tennis balls. this week, she brought 2 cans of tennis balls. the tennis balls cost d dollars per can. write an expression in simplest form that represents the total amount that star spent.

For this case we have to:

d: Represents the cost in dollars for each can of tennis

Then we have according to the data that:

The above expression represents the total cost of the tennis cans that Star bought.

We simplify, adding the similar terms of the expression:

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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i can't read the graph

step-by-step explanation: