A circular garden is surrounded by a rectangular grassy area. the garden takes up nearly half the grassy area. the base of the grassy area is 6 yards by 3 yards.

use the base of the grassy areas to find the approximate area of the circular garden. use pi =3.14. if necessary, round to the nearest tenth.

-4.7 yd
-7.1 yd
-9.4 yd
-28.3 yd

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?

This is so hard and it’s for a test

State one method by which you can recognize a perfect square trinomial.