Photomath is a good one. So is KhanAcademy, but I don't know if they have an app version of the website.
HI I JUST DID THE FIRST ONE . SORRY I CAN'T ANSWER THE 5TH AND6th IT'S HARD
Answer:
I am going to give this to someone and see if they can help!
Step-by-step explanation:
I think it is 60 years old?