Answer:

Step-by-step explanation:
Fixed monthly fee = $20
Amount charged per minute for long distance calls = $0.20
denotes total cost such that
minutes are used for long distance calls.
Amount charged for
minutes for long distance calls 
Therefore, an equation for the total cost, C, when N minutes are used for long distance calls is 
4/7 × 3/4
(4 and 4 are cancelled )
7×3
the answer is 21
Answer:
I have no idea Im so sorry i tried to understand all i could think of is x+y=99
Answer:
ray UV and ray UT
Step-by-step explanation:
The sides are the rays that make up the angle
ray UV and ray UT make up the angle VUT
Answer:
one solution,x=- 14
Step-by-step explanation: