Answer:
-5c+3c= -2c || 4f+(-3f)+c= 2c
271
Step-by-step explanation:
4 hours and 31 minutes = 240 + 31 = 271 minutes
3.33%
9.90/300=0.033
I'm pretty sure it is C. Have a great Valentines Day!
Brainleist plzzzzz!