exam Maths Puzzle Numerical Ability

How do you do slope?
can you give me the best way of understanding slopes?

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exam Other Question

PlEASE help!

Raffle tickets.
One thousand raffle tickets are sold for $1 each. One prize of $800 is to be awarded.
a) Rena Condos purchases one ticket. Find her expected value.
b) Determine the fair price of a ticket. I am having a hard time trying to solve this problem, if anyone could help me step by step, thank you.

Power rule for integral exponents:

(3y to the eighth power) divided by (2zy to the second power)