Help! We're doing this for extra credit in geometry

Giving ad is congruent to bc and angle bcd is congruent to angle adc prove d e is going to ce

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?