Which symmetries does the design above have? select all that apply.

a 4-fold rotational symmetry
b 2-fold rotational symmetry
c 3-fold rotational symmetry
d bilateral symmetry
e line symmetry

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%