If he uses 1 quarter, he has 40 cent left to make.He can do that in two ways, by using 2 dimes andall four nickels, or all 3 dimes snd 2 nickels.That's 2 ways.
If he uses both quarters, he has 15 cent left to make.He can do that in two ways by using 1 dime and 1 nickel,or no dimes and 3 nickels.That's 2 more ways. So there are four ways to make 65 cents.
Step-by-step explanation:






The correct answer is y = 1/8x^2
Because they react to iron and from rust
hope this helps
Step-by-step explanation:
I hope you got the hang of it.
I didn't had a place to draw the verbal questions, so I just did them in my head - if you want to understand it better
I suggest that you draw those triangles
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ÷)