Answer:
67
Step-by-step explanation:
subtract 90 from 23 and you should have what you need to save.
Answer:
The flow rate is 138.95 mL per hour.
Step-by-step explanation:
We are given the following in the question:
Volume of solution = 2.64 L
1 L = 1000 mL
Volume of solution in mL =

Time period = 19 hour
Unit rate of flow =

Thus, the flow rate is 138.95 mL per hour.
Okay so the equation. Lets say e is explorers and v is flying vs and m = money.
e + v > or = 30.
80e + 5v =m.
e < or = 20\
v < or = 20.
Okay, the most money he could make would be if he made 20 explorers at 80 dollars and 10 vs at 5 dollars.
Total money...
1600 + 50 = 1650.
So he could make $1650.