Okay so 6.25 a student then it goes to 4.50 for 15 more students at 70 students its 358.75 now it drops another 1.75 so it would be 368.75 for 80 students so the equation is 4.48 x 80 = 368.75. enjoy :D
Answer:
The correct answer is A
Step-by-step explanation:
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Since we have to solve this system graphically, we'll have to draw both lines.
To draw a line, simply build a little tables with two x,y values: for the first line we have
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So, you can draw the points (0,3) and (1,2), connect them, and you'll have the graph of the line 
For the second line we have
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So, you can draw the points (0,5) and (1,6), connect them, and you'll have the graph of the line 
Finally, we have to check where the two lines cross. If your drawing is accurate enough, you'll see that the point you're looking for is (-1, 4)
Answer:
x = 3
Step-by-step explanation:
13x - 2 = x + 2
12x = 4
x = 3