A maths class mean test score is 88.4. The standard deviation is 4.0 if Jimmie scored 85.9 what is her zscore

What is the value of y? round to the nearest tenth

Ivan and jeff buy a package of 8 pens for $4.00. ivan wants 5 of the pens, and jeff wants 3.how much should each student pay?

David is standing on the sixth rung of a ladder while painting his house. which expressions represent a change in david’s position of 2 rungs on the ladder? choose exactly two answers that are correct. a. 6+2 b. 6-2 c. 2x6 d. 6/2