You have to multiply on this one because example you go to the restaurant and eat so you pay but you have to put tips for the workers so its saying how much was total in all plus the tips
I=prt so you multiply principal rate and time to get the answer
Answer:
she bought 4 braclets
Step-by-step explanation:
if you do 20 times 4 it gets you 80 and if you subtract 50 it leaves you with 30 meaning she bought 4 bracelets
i do hope this helps even tho my explanation isn't exactly the best