40+40+40= 120. If each inch is 40 then add 40 3 times
Answer:
Area= 452.16 cm2
Step-by-step explanation:
12 x 12 = 144
144 x 3.14 = 452.16
Download the app Math then take a picture and it wil give u the answer.
Answer:
3.456E + 14= 
Step-by-step explanation:
The river discharges
cubic feet of water into the Pacific Ocean each second.
There are 86,400 seconds in one day.
Amount of water discharges each day

Since this differs from what you have, I will explain the scientific notation.
3.456E + 14 simply means 
The options are not well laid out but you can pick the appropriate option.