How is this number expressed in scientific notation?

The contents of 3838 cans of coke have a mean of x¯¯¯=12.15x¯=12.15. assume the contents of cans of coke have a normal distribution with standard deviation of σ=0.12.σ=0.12. find the value of the test statistic zz for the claim that the population mean is μ=12.μ=12.

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

What is coefficient of the term of degree of degree 5 in the polynomial below