This should simply this question
13×30÷4
= 97.5
The human body is mostly made up of water (H2O), and there is one oxygen atom in each molecule of water. Note that, although each water molecule also contains two hydrogen atoms, the atomic mass of hydrogen (about 1) is much smaller than the atomic mass of oxygen (about 16). Because of this, hydrogen contributes less to human body mass than oxygen.
Answer:
An Automated External Defibrillator (AED) is a portable device used to treat people suffering from sudden cardiac arrest (heart attack), which is potentially fatal. Before administering CPR or using an AED, you should always call 911. ... If an AED is immediately accessible, get the AED and use it right away.
Third-degree burn:
Call 911 or go immediately to the nearest hospital.
Do not remove clothing stuck to the burn.
Do not soak the burned area in water.
Cover the burn with a cool clean cloth or bandage.
Keep the burn raise above the level of the heart.
Signs of Stroke in Men and Women
Sudden numbness or weakness in the face, arm, or leg, especially on one side of the body.
Sudden confusion, trouble speaking, or difficulty understanding speech.
Sudden trouble seeing in one or both eyes.
Sudden trouble walking, dizziness, loss of balance, or lack of coordination.
Simply walking alone can actually do both of these however if you are looking for multiple answers then here are some examples:
-Playing Sports
-Jogging
-Lifting Weights
-Swimming
-Dancing
-Bike Riding
etc...
Anyways, hope I helped!