30 ÷ [(15 − 7) − (8 − 5)]

So the right answer is 6.

Look at the attached picture

Hope it will help you....

Good luck on your assignment

6

Step-by-step explanation:

30 ÷ [(15 − 7) − (8 − 5)]

30 ÷{[15-7]=8-[8-5]=3}

30÷[8-3]

30÷5=6

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.