Can someone explain because my teacher has no time to teach me this and could use on the first three

Polygon hh is a scaled copy of polygon gg using a scale factor of 1/4. polygon h's area is what fraction of polygon g's area?

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22