Plz help with this it is for algebra

What is the simplified form of 7 √x • 7 √x • 7 √x • 7 √x?

Use the knowledge of x- and y- intercepts to choose the correct graph of the equation 3x+6y=6

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.