A researcher states that bone density in women is negatively associated with age. This means that:

It cost ruby $4 to send 48 text messages what was her cost of texting in texts per dollar? Express your answer in simplest form

Una was asked to write about predicting population means by taking the means of samples. She recorded a list of some statements generated from her classmates. Which statements are true? Check all that apply.

Melisande collected 14 bottles on Saturday and 9 bottles on Sunday for recycling. On Monday, she took all the bottles to the recycling center, where they paid her a certain amount, b, for each bottle.

lauren drove her car 240 miles on 10 gallons of gasoline. At this rate, about how many gallons will she have use on a 1,200 mile trip?

Sara sold 220 shirt. The ratio of short sleeve 7:3

What is the difference between 128.04 and 8.287?

You need to buy edging to put around a flowerbed. If the flowerbed is 13 feet wide, how much do you need? A) 20.4ft B) 39ft c) 40.8ft D) 132.7 ft

What do 10n represent in p (n) = 10n-1200

A container holds 21 spoons and 27 forks. What is the ratio of spoons to the total number of utensils in the container? A. 7 to 9 B. 7 to 16 C. 9 to 7 D. 16 to 9

Sridhar has garden in the shape of square the area of garden is 576 sq m around the outside of the garden he built path of 3 m wide what will be the area of the area of the garden including the path?