Answer:
D.
Step-by-step explanation:
Answer:
500
Step-by-step explanation:
Answer is B, the graph increases by about 0.28 per year
Answer:
30 hours
Step-by-step explanation:
The equation we use is 1/15 + 1/x = 1/10. X being the amount of time it takes Ian alone. X works out to 30 hours which is the answer