Estimate to the nearest hour, the most common number of hours of sleep required by a mammal.

7-8

Step-by-step explanation:

As humans are mammals, we require around 8-12 hours of sleep, this means that most other mammals may require the same amount of sleep. According to the provided chart, 9 is the average, and between 6-7 hours are the most common.

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 : )

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²