Which of the following is a true statement about functions? a. if f and g are functions, the (fog)(x)=(gof)(x).
b. if a and b are matrices, then ab=ba.
c. if f and g are functions then (f+g)(x)=(g+f)(x).
d. if f is a function, then f(a+h)=f(a)+f(h)

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?

If johnny ate 5 cans of sugar, but in the kitchen they only had 3. what did johnny eat? (he found a secret stash btw.)