Answer:
c) 3
Step-by-step explanation:
22=2x2 +4
22-4
18=2x2
18/2
9=x2
x=3
Answer:
4,200 liters
Step-by-step explanation:
The flow rate is given by:

Integrating the flow rate expression from t=0 to t=30 minutes, yields the total volume that flows out of the tank during that period:

4,200 liters of water flow from the tank during the first 30 minutes.
He increased 30% so that means he can bench press 180lbs
12, 4
take the first number together than the last ones and just find the difference
i believe that equals 8,if i am wrong,i am sorry