An aquarium has 14 angel fish, 12 clownfish and 18 seahorses. What is the
ratio of seahorses to total number of fish?

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)?

The high temp today was 62°. when nighttime comes, the temp will drop 40°. by 4am the temp will drop an additional 40°. what is the temp at 4am?

This venn diagram shows the pizza topping preferences for 9 students