Please help! :( What study element was used to prevent the Hawthorne Effect AND the Rosenthal Effect? Single-Blinding
Self-Reported results from the participants journals
Secret ballot
Double-Blinding

the answer will be b x² +x-1

step-by-step explanation:

the answer is 62.8 cubic units

21

jk it's 20

step-by-step explanation:

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