Answer:
A=60
Step-by-step explanation:
Add 28+20+12
A=60
3/10 of 5/6....." of " means multiply
3/10 * 5/6 = 15/60 reduces to 1/4......1/4 of her garden has red flowers
9 Floor
32 Rooms
To find total multiply 9 and 32 to get 288 total rooms.
Answer:
Yes it appropriate to use the normal approximation to find the probability that more than 43% of the people in the sample have high blood pressure
Step-by-step explanation:
From the question we are told that
The population proportion is p=0.4
The sample size is n = 39
The sample proportion is 
Generally for normal approximation to be used

so np = 39 * 0.4 = 15.6 > 10
and 
so n(1-p ) = 39(1-0.4) = 23.4 >10
Given that the both condition is meet it mean that it appropriate to use the normal approximation to find the probability that more than 43% of the people in the sample have high blood pressure
Well, 20 over 40 is half, so we already know that it must be more than 50% because it is 22 over 40, so 55% of the lawn is planted with Kentucky blue grass. I hope that helps! :D