Can someone help hurryy!!

32km

Step-by-step explanation:

An octagon has 8 sides. 8 * 4 = 32

32km

Step-by-step explanation:

To calculate the perimeter of a polygon, just add all of the sides together.

In this case, take 4 and multiply it by 8 (since there are 8 sides)

4km x 8 = 32km

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 : )

134.6 us dollars

step-by-step explanation:

1 us dollar = 1.33 canadian dollars

so, 150 us dollars = 150 × 1.33 = $199.5.

in canada, the money mitchell spent = 20 canadian dollars.

remaining canadian dollars with him = 199.5 - 20 = 179.5.

after mitchell returned to us, he exchanged the remaining canadian dollars to us dollars.

179.5 canadian dollars = 179.5 × 0.75 = 134.6 us dollars.