(−6x+3)−(−2x^2+6x−10)

2x^2-12x+13

Step-by-step explanation:

1. Distribute the - sign to all #'s within the parentheses

-6x+3+2x^2-6x+10

2.Combine like terms

2x^2-12x+13

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.