Y = 8 - 2x. Choose the correct values of y when x = -1 and when x = 0

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

For the chance to be team captain, the numbers 1-30 are put in a hat and you get two chances to pick a number, without replacement. which formula correctly shows how to find the probability that you choose the number 1 and then 2?