Can someone please help me with this algebra

28 x 12 + 34 = ? it's for a test that if i fail on i will not proceed into the honor roll society i always dreamed of!me! worth 50 !

Acomputer company is testing a new booster to increase program load times. the box plots show the number of seconds it takes to load a program with and without the booster. using these plots, how much did the median change?

A. 530 ft^2 b. 500 ft^2 c. 470 ft^2 d. 450 ft^2