For what range of monthly usage times is Alphacom cheapest? A 0 to 80 minutes

B
80 to 150 minutes
С
100 to 160 minutes

D
more than 150 minutes

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

Which expression is equivalent to 4 square root 6 divided by 3 root 2

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?