Can you factorise
x=3a-2x10-2a

x = 3a - 2·10 - 2a

x = 3a - 2a - 20

x = a - 20

according to egenuity the answer is

step-by-step explanation:

d. 344.22

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.