Step-by-step explanation:
area of rectangle (a1)=b×h
area of triangle=1/2 ×b×h
total area of arrow=a1+a2
<h3>stay safe healthy and happy.</h3>
Answer:

Step-by-step explanation:
Cylinder volume formula is 




Answer:
A coefficient is an integer that is written along with a variable or it is multiplied by the variable. For example, in the term 2x, 2 is the co-efficient.
Those variables which do not carry any number along with them, have a coefficient 1. For example, the term y has coefficient 1.
Step-by-step explanation:
First, convert 7 kilometers to meters, which is 7000 meters.
Add that to 400, and now you he ran 7400 meters.
Now convert 1.6 kilometers to meters, which is 1600 meters.
Add that to 7400, and the total is 9000 meters.
Hope this helped!