199.
the z score for the 90th percentile is 1.28, so you can solve the equation

which gets you the 199
15 cookies burned because if you Turn

into a decimal then multiply it by 20 you get 15 and thats your answer.
Answer:
5
Step-by-step explanation:
As corresponding lines are equal
16x+1 = 79
16x = 80
x = 5
A) x - 7 > 3 |add 7 to both sides
x > 10
b) x - 7 > 3 |add 7 to both sides
x > 10