Dan says that 3/5 is the same as 3.5. is he correct

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

I’m not good at math can i have ? ?

Find the center of the circle that can be circumscribed about efg with e(4,4) f(4,2) g(8,2)