Answer:
If yall think its a virus well here I downloaded it and here is the worksheet :)
Step-by-step explanation:
The equation you can use is x + 3x = 428 with x as the number of cheeseburgers and 3x the number of hamburgers
you solve for x and get 4x= 428 and x=107
so 321 hamburgers were sold that day.
Answer: 0
Step-by-step explanation:
To find slope, I found that an easy way is the equation y2 - y1 over (divided by) x2 - x1
so for this, it would be:

which is 0/7
0 divided by 7 is 0, so there is your answer
Answer:

Step-by-step explanation:
The diagram shows three paralel lines which divide the large triangle into three similar triangles.
By Thales theorem,

Then

From the similarity of triangles,

Solve for n by simplifying both sides of the equation, then isolating the variables.
n=54
Hope I helped