Answer:

Step-by-step explanation:
You move the decimal place over 6 times for the first equation and 5 for the second equation.
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ratio of adults to students can be written as a fraction
adult tickets / student tickets
140/210 can be simplified to 14/21
14/21 can be simplifed to 2/3
You look at the hundreths place (4) and if it is 5 or more you round the tenths place up. so the number is rounded to 9.2
Answer:

Step-by-step explanation:
Slope is negative reciprocal when two lines are perpendicular
m1=1/2 therefore m2=-2
The equation of the line in point-slope form is given as

Here m=-2 and (x1, y1)=(-3, -1)
Therefore,
