Repeat the checks for the following values of a: a = 1, a = –2 and a = 0. a: a =0 I don't know what this question means
someone help

When you arrive at the lake, your friend realises he hasn’t got any swimming trunks. you need to ride to a sports shop. the sports shop is 8350 metres away. how many metres is it to cycle there and back?

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

What’s -11-33k and factor each expression completely