Answer:
n = 1.125
Step-by-step explanation:

(Use Cross Product)
40n = 15 × 3
40n = 45
n = 1.125
The value of y when x= 2401 is -10
<h3>How to determine the value of x?</h3>
An inverse variation is represented as:

Where k is the proportionality constant
When y = -70, x = 49
So, we have:

Take the square root of 49

Multiply through by 7
k = -490
Substitute k = -490 in 

When x =2401, we have

Evaluate the square root

Divide
y = -10
Hence, the value of y when x= 2401 is -10
Read more about variation at:
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Find the slope m.
Use the point-slope formula.
Solve for y.
Answer:
b
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
Well like how the ounce is the smallest a ton is the biggest.For example, it makes more sense to describe the weight of a human being in pounds rather than tons.