The zeroes of the function are

-2 and 0
0 and 4
-2, 0, and 4

If you could answer these your a life saver

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?