Find the exact value of each trigonometric function.
9) cos θ
315 degrees
10) tan θ
405 degrees
11) cos θ
-4pi over 3
(-4pi/3)
12) sin θ
8pi over 3
(8pi/3)

only 10/60 isn't equivalent

hope this : )

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.