You need to multiply 1 and 5 plus 2.
and for 5 2/7 it would be 5 times 7 plus 2.
So...
5 2/7= 37/7
1 2/5= 7/5
Markup = $4
b) markup as a percentage of cost is 33.3%
Step-by-step explanation:
Markup
markup = selling price - cost
= $13 - 9
... markup = $3
Markup as a Percentage of Cost
To find the percent markup, divide the markup by the reference value and multiply the ratio by 100%. The reference value for markup is usually cost price, but sometimes may be selling price.
... markup / cost × 100% = 3/9×100% = 33 1/3% ≈ 33.3%

Let's simplify ~






value x lies between :

if the value of x is taken -5


if value of x is taken as 5


So, the possible values of the required expression lies between ~

I hope you understood the whole procedure. let me know if you have any doubts in given steps ~
Answer:
The answer is C
Step-by-step explanation:
I pick that answer because you have divide