Please help me Cassie has a deck of 20 cards numbered 1-20. She randomly picks a card, does not replace it, and then randomly picks another card. Find the probability of each event.

1. Picks a 5 and then a 6

2. Picks an even number and then a 7

3. Picks a 5 or less and the. A number greater than 15

4. Picks a 1 and then a number greater than 4

9. (y^-5)^10y^10 a. y^-60 b. y^60 c. y^-150 d. y^150 find the simplified form of each expression. 10. (4/7^5)^2 a.8/14^10 b.16/49^25 c.16/49y^10 d.8/14y^25 11. determine if the number 3.43 times 10^-6 is written in scientific notation. if not, explain. a. yes; the number is written scientific notation. b. no; the first factor is not a number between 1 and 10. c. no; it is not written as a number times a power of 10

What is the order of operations for 2 + (3 - 9) ÷ -3 · 4 in number order 1. subtraction 2. division 3. addition 4. multiplication

Hi my sisters and brothers can tell me the answer because i don’t understand the question