How does diaphragm help with running

Belly breathing, also known as diaphragmatic breathing, is a technique which allows you to maximize your oxygen intake while you run. It works by engaging the diaphragm to create more space in your chest cavity, allowing your lungs to expand fully to take in more oxygen.

Step-by-step explanation:

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8  

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2