A biologists uses the equation l = 2a + 13.1 to estimate the length (l), in centimeters, in terms of the age (a), in months. Based on the model, what is the estimated increase, in centimeters, of the length of the fish each month?

A set of data with the mean of 60 and the standard deviation of 7.5 is normally distributed what is the - 2 standard deviation from the mean

Which is the smallest number with three different prime factors?

A bag of oranges has 144 kg. The store earns $ 3.50 per kg of orange sold. If they sold seven ninths of the sack. how much money did they earn

A rectangular area is to be enclosed by a wall on one side and fencing on the other three sides. If 18 meters of fencing is are used, what is the maximum area that can be enclosed? A: 9/2 m^2 B:81/4 m^2 C: 27 m^2 D: 40 m ^2 E: 81/2 m^2

If there are 12 fish and half of them drown, how many are there?

The price Regina pays to visit the vet's clinic is calculated according to the formula 20 + 50n. Here (n) is the number of times she visits him in a year. This time it was 2. What was the cost of his visit

Jorge is baking cookies. The recipe makes 144 cookies. If Jorge and his 5 friends want to divide the cookies evenly, how many cookies will each person get?

For the schools sports day a group of students prepared 21 1/2 lbs of lemonade at the end of the day they had 2 5/8 lbs left over how many lbs of lemonade were sold

The area of a rectangle is 48 square centimeters. The length of the rectangle is 8 centimeters longer than the width. Which equation models this situation? A. 8w=48 B. w+8w=48 C. w+8=48 D. w (w+3) = 48

Tanya drove 312 hours and used 13 tank of gas. For how long could Tanya drive using 12 tank of gas? In simplest form.