Joe has an 15% probability of passing his statistics quiz 4 each time he takes it. how many times should joe expect to take his quiz before passing it?

50 ! pls ! 12.  building codes regulate the steepness of stairs. homes must have steps that are at least 13 inches wide for each 8 inches that they rise.

a. discuss how to find the slope of the stairs.
b. describe how changing the width or height affects the steepness of the stairs.

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items