PLEASE HELP SOLVE!! WILL MARK THE BRAINIES
I NEED HOW TO KNOW HOW TO SOLVE THIS even if I got it wrong. ONE CHOICE ONLY. NOT MULTIPLE CHOICE. THANKS! Can you show me how to solve this. Only confident answers

PLEASE HELP SOLVE WILL MARK THE BRAINIES I NEED HOW TO KNOW HOW TO SOLVE THIS even if I got it wrong ONE CHOICE ONLY NOT MULTIPLE CHOICE THANKS Can you show me class=