What is the main purpose of informational writing? To compare and contrast
To present popular views on a topic
To express opinions without evidence
To inform readers about a topic using facts and details

Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?

In the diagram of circle a what is m

How do you solving the solution of each system using elimination?