The explicit formula for this arithmetic sequence is A(n)=1/2•(-8)^(n-1)
I think it is 1.5×p.
Because for example:
If there were 99 science problems, then...
99÷3=33
99÷2=49.5
49.5÷33=1.5
33=p
The #of science problems=p×1.5
Answer:
see the attachment photo!
On the x axis, you would go to the middle of 2 and 3, which is 2.5 and go up all the way to 12 and then plot the point.