Hmm, I think you would take 40 and multiply it by 2 because her sister used "twice as many". Then I'm pretty sure you would take your answer from that and divide it by 2 because she used that amount of paper in "half the number of days"?
40 x 2 = 80 all together used
80 / 2 = 40 how many used each day
Is that what you were asking? If I'm wrong let me know please
Answer:
Company A: 
Company B: 
Step-by-step explanation:
The initial fee is the y-intercept, as that is the cost at x = 0, or the cost before any time has passed. Afterwards, the rate the cost increases is the slope.
Linear equation in slope-intercept form:

where m is the slope and b is the y-intercept.
Company A charges $50 up front and $40 per hour afterwards, so the equation would be:

Company B charges $25 up front and $50 per hour, so:

Answer:
Question 1: <
Question 2: >
Question 3: <
Question 4: <
Step-by-step explanation:
The questions are repeating themselves but I tried to answer. For the first one, -2/3 is less than -1/6 because if you put the same denominator, that is what you get as your answer. Then, for the second one 2/3 is positive so you can automatically know it is greater than a negative fraction. Explanation for the third and fourth problems are the same as the first one.
45% of 45....is 20.25
this any help?