Answer:

Step-by-step explanation:

Adding 10 to both sides.


Adding
to both sides.


Dividing both sides by 10.


∴ 
It would be 90%..... 45/450= 10%.... so there would be 90% not being used.
Answer:h stands for hours so if they worked 40 hours they would get paid 1820 dollars
Step-by-step explanation:
Answer: z _> -10
Step-by-step explanation: