Jhon went to the cinema to watch a film at quarter past 3. The film lasted for an hour, What time did he leave? Please I need the answer.

What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?

Im so bad at fractions they are not my best math thing to work on

Point a is at 12, and point d is at 56. point c is midway between a and d, and point b is midway between a and c. which of these is the coordinate of b?