How do i find the estimate of 82 x 49?

Evaluate the integral. (sec2(t) i t(t2 1)8 j t7 ln(t) k) dt

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.

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?