HELP PLSSS Given the relation below:
(5,9), (8, 14), (12, 18),(a, 22)
Write a value for "a" that makes the relation NOT a function.

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Someone me what is the area of this figure? 18m 18m 8m 16m

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?