Aconfidence level of 95% means:
95% of the time, sample percentages will fall
above the mean.
95% of the time, population data will fall
between 149.61 and 150.39.
the mean of 95% of the adults in the sample
was 150.
done

The discount is 8.70 . you dont tell us the percent of tax added so there is no way to find out, unless i'm not seeing anything. without tax its 37.70

1. statement- ca is parallel to db and e is the midpoint of ad reason- given2. statement- reason- alternate interior angles3. statement- de is congruent to ae reason- definition of midpoint4. statement- triangle aec is congruent to triangle deb reason- asa (angle side angle)