19. The diagram below shows a sector of a circle.
7 cm
40°
7 cm
B
Calculate the area of the sector. Give your answer correct to three significant figures.

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.

the answer is -6

step-by-step explanation:

the answer is -6 because its next to the variable m