Answer:
The bottom two
Step-by-step explanation:
Units of time should always be on the x-axis, otherwise a positive graph would mean a drop in the opposing y-axis unit.
Yes you do because you cannot subtract 7 from 6.
1,3,5,6 are correct answers
7.5 hours total divided by .5 hours per arrangement would be 15 arrangements.
This is probably way overcomplicated but i cant remember how to do it
w = n
l = 2n+1
w*l = 66
n(2n+1) = 66
2n^2 + n =66
2n^2 + n - 66 = 0
using quadratic equation
n = 11/2
width = 11/2 = 5.5
length = 11 + 1 = 12
