Answer:

Step-by-step explanation:
Divide everything by 2
Divide everything by -1 and since y is negative, you flip the sign

Answer:
so far i got 8 quarters 14 dimes and 13 pennies
Step-by-step explanation:
ill update you if i got any closer
Answer:
2 hrs and 21 mins I think
Step-by-step explanation:
I subtracted 328-147 and got 181 and since their is 60 mins in one hr I made it another hour and after I subtracted 81-60 and got 21 minutes. 2 hrs and 21 mins. Hope this makes sense.