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.
51T+9
51×T+9
These are the answers .. chose anyone because they both mean the same thing but the first one is more sophisticated
Step-by-step explanation:
25/5 + 4 = 5 + 4 = 9
is that what you needed ?
