If I was making cupcakes and brownies for my school fundraiser and the brownies needed 1.28cups of sugar and the cupcakes needed 4.2 cups of sugar how much sugar do I need altogether

You would only need 5.48 cups of sugar

Step-by-step explanation: Add the cups of sugar for the brownies and the cupcakes together

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

a) 0.25x times 3. (could be wrong on equation.)

b) 2.25 pound of dark chocolate. (can i eat all the chocolate? plz? anyway, again, could be wrong, but i hope im right. all the chocolate together should be 5.25 pounds)

have a good day!