for an expression or relation to be a function, it must not have any x-coordinate values repeated, let's check this one

90/2 = 45
45/1700 = 0.02647
0.02647 x 100 = 2.64
2.46%
Answer:
Option B. 2.75
Step-by-step explanation:
It has been given in the question that a wedge has a width of 2 cm and a slope of 5.5 cm.We have to calculate the mechanical advantage of the given wedge.
We know the formula to calculate the mechanical advantage of the wedge
Mechanical advantage = Length of slope/Thickness of the widest end
= 5.5÷2 = 2.75
Therefore the answer is option B. 2.75