There are 172 south american animals in the springdale zoo. that is 45 more than half the number of african animals in the zoo. write an equation you could use to find n, the number of african animals in the zoo.

You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )

What 8/12+8/11 in another way than and improper fraction

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