Identify the upper extreme on the box and whisker plot asap

Which of the following is the equation of a line that passes through the point (1,4) and is parallel to the x-axis a. y=1 b. y=4 c. x=1 d. x=4

Equation for the calculation double 2 and then add 5

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.