Idon't understand how to solve this pls

the sine function is a many-to-one function and therefore has no inverse function.

However if the domain is restricted to -90° ≤ x ≤ 90°

Then the function is one-to-one for this domain

Thus, x is defined as the angle such that - π/2 ≤ x ≤ π/2

5π/6 is therefore outwith the domain

answer:     true

step-by-step explanation:

b

step-by-step explanation:

u take $75 minus $60.the anwer/original($75)multiply by 100