Answer:
Monthly cost of cell phone for 0 minutes is $19.95 and for 40 minutes of talk is $21.95. It means that average rate of change ( increase of monthly cost for each minute of talk time ) is: ARC = ( 21.95 - 19.95 ) / ( 40 - 0 ) = 2.00 / 40 = $0.05. Answer: C ) The average rate of change is $0.05, meaning that for each minute of talk time, the monthly bill increases by $0.05.
Answer:
![8 - 3x > -25 : \left[\begin{array}{ccc}solution: x < 11\\Interval Notation:(-\infty,11)\end{array}\right]](https://tex.z-dn.net/?f=8%20-%203x%20%3E%20-25%20%3A%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Dsolution%3A%20x%20%3C%2011%5C%5CInterval%20Notation%3A%28-%5Cinfty%2C11%29%5Cend%7Barray%7D%5Cright%5D)
Step-by-step explanation:
Subtract 
from both sides:
Simplify:
Multiply both sides by 
(reverse the inequality):
Simplify:
Divide both sides by 
:
Simplify:
Hope I helped. If so, may I get brainliest and a thanks?
Thank you, have a good day! =)
Answer:
n = (-4)
Step-by-step explanation:
Firstly expand the bracket
;2[3(1 - n) -2(1+n)]
;2[ 3 - 3n - 2 - 2n ]
;2[ -5n + 1 ]
; -10n + 2
then go back to the question and substitute the bracket with the simplified form above,
; 7n - 10n + 2 = 14
; -3n = 14 - 2
; -3n = 12...then divide both sides by (-3)
;Hence... n = (-4)
Answer:
$30.90
Step-by-step explanation: 30 + .09 = 30.09
