1. A sample of 30 sales records from a convenience store has mean R140. It is known that the standard deviation of sales receipts in this store is R30. Use these values to test whether or not the mean sale value at the convenience store is different from R150, at the 5% level of significance. Test the hypothesis and establish the p-value. State your p-value correct to TWO decimal places.

on friday there were 15 birds

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3