Answer:
John is 19 and his sister is 23.
Step-by-step explanation:
See attached image.
Since we are talking about real quantities (hours), x should be positive. Also, you need to take into account that Wendy needs to play in order to win game levels.
Therefore the domain will be: x > 0
Answer:
B. The function is linear and decreasing
Step-by-step explanation:
Answer:
7×17/49
Step-by-step explanation:
90/7 × 4/7
90×4 / 7×7
360/49
7 17/49