If the temperature of the air is 30 degrees and can hold 30 g of water vapor at that temperature, what would the relative humidity be if the air is actually holding 20 g of water vapor? SCIENCE NOT MATH.

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

3boys + 4 girls = 7 students

3 boys to students   true   yes

4 girls to 3 boy   true     yes

3 boys to 7 girls   false   no

4 girls to 7 students   true   yes

well, if you graph the linear equation using intercepts or other methods, and the line is straight, then the equation is linear