7 ÷ 7^3 x 7

8^2 ÷ (8 - 4)^2

-4 + 3^3 ÷ 5

help pleas

I'm terrible at math any here is appreciated.

For what value of x does 4x = (1/8) x + 5?

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