Can someone please please help me this is due in 9 minutes and I need help please. If a student guessed on three questions on a multiple-choice exam, with each question having options A, B, C, and D, what is the probability that he or she would get them all wrong?

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?

Use the rule of 72 to calculate how long it will take for your money to double if its earning 6% in interest. a. 12yrs b. 16yrs c. 36yrs d. 72yrs

Which specimen would best be viewed using a compound light microscope?