Answer:20
Step-by-step explanation:
Answer:
Rate of Interest is 
Step-by-step explanation:
Given that

and T=0.5 years
To find rate of interest
We have I=PRT
Therefore




Therefore 
Rate of Interest is 
Ok so we know that x = y+70
So y+y+70 = 300
2y+70 = 300
2y = 230
y = 115
So we know that x = y+70
do x = 115+70
X= 185
Answer:
8
Step-by-step explanation:

Answer:
a total of 129 minutes
Step-by-step explanation:
$17.48 - $2 fixed monthly fee = $15.48
$15.48/0.12 = 129 minutes