you have take the two x problems add them and then you take both ys and you should get a answer after that take the answer ur given and divide it by the answer you get from 2,-5
Y=6, X=8, t=3/2 then dx/dt=5.33 or 16/3
Nine because there's three runners and three places to finish so 3*3=9
For the five characters of the five-character password, the first three slots are already taken for the initial F, J, S, the password would become,
FJS_ _
The last two slots could be any of the even digits. In the fourth slot, Fiona can have any of the 5 values. On the fifth slot, she can have only 4 choices as the other digit was already used. Multiplying 5 and 4, the answer would be 20.
