Nearest tenth:
3.9
Nearest whole number:
4
When dealing with money, you must round up.
The temperature will be 84 degrees in 12 hours
hope it can help you,x＝-5,x＝2
calculation is given in the picture
Inlet pipe can fill the pool in 6 hours, means: every hour the pool is filled 1/6
a drain can empty the pool in 9 hours, means: every hour the pool is drained 1/9
If the inlet and the drain are both left open, every hour the pool is filled 1/6-1/9=1/18
It will take 18 hours to fill up the pool.
Mark I am almost the same one you are you going back to the house
