ANSWER
2(s+175)
EXPLANATION
The total amount of garbage thrown away at the school each day is the amount of garbage thrown away by the students plus the amount of garbage thrown away by non-students.
total = lb students + lb non-students
lb students is 2s as each student throws away two pounds a day.
lb non-students is 350. Therefore, the total amount of pounds of garbage thrown away each day is
total = 2s + 350
We can factor out a 2 from this expression as each term is divisible by 2 and that is the greatest common factor. We end up with
total = 2(s+175)
Answer:
Write down y=f(x) and then solve the equation for x, giving something of the form x=g(y).
Find the domain of g(y), and this will be the range of f(x).
If you can't seem to solve for x, then try graphing the function to find the range.
C. Is try correct answer
See example in the attached picture
139 + 30d = 13 + 51d
139 - 13 = 51d - 30d
126 = 21d
126/21 = d
6 = d
now lets check..
139 + 30d = 139 + 30(6) = 319
13 + 51d = 13 + 51(6) = 319
so on day 6, they will both cost $ 319
She does not use her creator card a lot or she does not purchase many expensive items
