Answer:
The answer is the Immune system (a).
Explanation:
The immune system consists of agents that help your body fight against pathogens and other invading substances. It has your white blood cells, enzymes, mucus, hydrochloric acid (in your stomach), and even your saliva. All these substances help make sure your body is rid of anything that may bring harm to you!
Carbohydrate can be simple or complex. The type of carbohydrate used by the body is glucose it is a simple carbohydrate. When you eat whole grain rice for example the body has to break down the complex carbohydrate molecules in to smaller pieces until it is converted to glucose during digestion. Once it is converted to glucose it can be put into the blood stream and become assimilated
Answer:
The length is 28.656 m and the width is 14.656 m
Explanation:
<u><em>The question in English is</em></u>
The area of a basketball court is 420 m² if the length is 14 meters more than the width, what are its dimensions?
Let
L ----> the length of the basketball court
W ---> the width of the basketball court
we know that
The area of the of rectangular court is

we have

so
----> equation A
----> equation B
substitute equation B in equation A and solve for W

Solve the quadratic equation by graphing
The solution is 
see the attached figure
Find the value of L

therefore
The dimensions are
The length is 28.656 m and the width is 14.656 m