Answer:
13
Step-by-step explanation:
Hope this helps..
<span>Often the university sites exist primarily for internal use, listing equipment and demos available to physics professors teaching large sections of introductory courses. They usually give lists of required equipment, they don't always give much information about setup, effective presentation and explanation of the physics.</span>
1-(1/5)= 4/5 or 28/35 if you multiply top and bottom by 5
