Check all the equations that are examples of joint variation. a) a= 3bc
b) r=2q
c) v=at
d) l=4/mn
e) w=0.25xyz
select all above that apply.

Astandard american eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. assuming the weights of standard eskimo dogs are normally distributed, what range of weights would 99.7% of the dogs have? approximately 26–34 pounds approximately 24–36 pounds approximately 28–32 pounds approximately 29–31 pounds