Answer:A) yes,B)4.50n<135
Step-by-step explanation: should would make profit because you would take the answer you got from 12n > 135 + 4.50n to see work look below
- 12-4.50=7.5
- 7.5n>135
- 7.5/135=184
- 18*15=270
the answer for part b would be to see work look below
- set up equation(4.50n<135)
- 4.50/135
- anwer is n<30
hope I helped!!!!!
'' In math, a geometric series is a series with a constant ratio between successive terms.
I can’t read the bottom half of the fraction so I will just assume it’s (a-b) to the power of 3.
So basically you have power of 4 and power of 3. so you can divide the top and bottom by (a-b) to the power of 3 so you would be left with a-b/1 = a-b
Final answer: a-b
Let ,Cynthia invested $x
Rate = 5%per year
time = 3 year
Amount
A= P(1+r/100)^t
8000=x(1+5/100)^3
8000=x(21/20)^3
x= (8000x8000)/9261
x=6910.7$
Therefore she can invest =$6910.7 =5322.14 pound
