What is the value of b? b+4 b+38 b-19

For the first one b can be a higher or lower number

for the second one b can be a higher or lower number and the last one must be a higher number

Step-by-step explanation:

hope this helps :D

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.