Paco buys a total of 15 pencils and markers for $11.15. Each pencil costs $0.30. Each marker costs $1.25

What is the ratio fraction form of 25: 9

Will mark ! (10 points also! ) if x varies inversely with y and x =6 when equals y= 10, find y when x=8 a. y=4.8 b. y=7.5 c. y=40/3 d. y=4/15

Aresearch study is done to find the average age of all u. s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample