2) (2.8 x 102) x (3 x 104) Strategy One: Strategy Two:

Powers of 10:

Standard Form:

3) (12 x 105) x (9 x 10-2) Strategy One:

Strategy Two:

Powers of 10:

Standard Form:

right

step-by-step explanation:

found it xd it ok yt

sine

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.