A = 2 x 36 x 5 B= 23 x 32 x 52
b) Write down the highest common factor (HCF) of A and B.
HCF =??

hdjd

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.

they used 313 gallons of paint

yes.. it's proven to be 36.