If there are 8 questions on a test and you get on all of them, what is the chance you get all 8 correct? ASAP

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?

In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.