How much sleep dose a jaguar get in 1 year

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Charlie tosses five coins.what is the probability that all five coins will land tails up.

If a suspect is in possession of 20 grams of cocaine how many ounces does he possess what will the charge be