The plumber worked for 5 hours because 450-200=250 which gets rid of the initial fee so 250 divided by 50 is 5
12/21, just multiply across and you’re done :)
Standard: 7,777,777, Expanded: 7,000,000 + 700,000 + 70,000 + 7,000 + 700 + 70 + 7, written: seven million, seven hundred seventy seven thousand, and seven hundred seven. Hope this helps!!
Answer:
Step-by-step explanation:
correct