x = 3 x 10" and y = 4 x 10" where m and n are integers. Find, in standard from, expressions for: (a) x2 (b) y2 (x) y

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.

c

step-by-step explanation: easy math

perimeter of the base times height

step-by-step explanation: