The average weight of a 7-year old girl is 49 pounds. the average weight of an 11 year old girl is 77 pounds. a. write a linear model with weight as a function of age. b. what does the slope mean? c. what does the y-intercept mean? d. at what age are the girls 62 pounds. explain

Select the correct answer. joshua likes to read. he read 6 books when he was 6 years old. every year he doubled the number of books he read the previous year. how many total books did he read between the ages of 6 and 10? a. 60 b. 90 c.186 d.187

This is different from the first one can someone me

Ms.ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms.ortiz charge per kilogram of tomatoes to make on a load of tomatoes?