The main span of Bridge A (2900 feet) is percent shorter than the main span of Bridge B (4600 feet).

triangle and cube

step-by-step explanation:

irrational, cannot

what statement? is there an image?

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.