Answer:
subtract 10-7 which is 3 cookies
Let's first denote:
F - a favorable response
F' - an unfavorable response
S - successful
We know that:

So, from the conditional probability, we can calculate:

Answer E.
The prime factorization of 640 can be written as 27 × 51 where 2, 5 are prime.
Omg I have the same page as you. But here’s the first one for number 19
Answer: Triangle: x = 40 Line: x = 10
Explanation:
All angles of a triangle adds up to 180. So x + 50 + 90 (the square box represents a 90° angle) = 180
Simplify: x + 140 = 180
So x = 40°
A straight line is 180°
so 7x+110=180
7x= 70
x=10