5 Water is poured into this trough at a rate
of 2 litres per minute. How long will it take
to fill the trough? Give your answer to a
sensible degree of accuracy.

40 cm
75 cm

Can somebody me out with this question

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.

How many $20 bills do you need to have to make $280