49.SU The circumference of a circle can be found using the
formula C = nr.
Which is an equivalent equation solved for n?
Or= Сп
O r= C(2)
Or=
C
27
O r = 21
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angle addition postulate

2x=56

step-by-step explanation:

do your own work and don"t cheat.

step-by-step explanation:

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.