I think the area of this triangle is 27.1 square cm. Hope it help!
Step-by-step explanation:
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Y = -5x + 12 since the slope of that line is -5x and in order to pass through that point the y intercept must be 12
<h2>
Hello!</h2>
The answer is:
They spent $176 together.
<h2>
Why?</h2>
We are given an expression which represents the money spent for each girl, it's a function of time and it will show how much they can spend in terms of hours.
Assuming that you have committed a mistake writing the equation, otherwise, the given options would not fit, the expression is:

Now, from the statement we know that the function represents how much money each girl spent, so, if we need to calculate how much money they will spend together, we need to multiply the expression by 2, so we have:

Then, calculating the spent money for 2 hours, we need to substitute the variable "x" with 2.
Calculating we have:


Hence, we have that they spent $176 together.
Have a nice day!
When u want to find domain
that meant u want to find all the valuable of x possible
it will be possible if
3-x >=0
x<=3
x = [-inf , 3[
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