5. (Step-By-Step Instructions):
(w/h^2x703) = BMI Write equation
(w/60^2x703) = 20.5 Substitute the values to the equation
(w/3600)x703 = 20.5 Simply the exponent
(703w/3600) = 20.5 Multiply 703 to w/3600
703w = 73800 Multiply 3600 to 20.5
w = 104.97866 Divide 703 to 73800
w = 105 Round the number to the nearest whole number
Sorry I cant do 6