2 + 4 − 8 can be written in form of ( + )2 + . Find the value of .

Are carpet coast $15 per square metre. the total delivery charge is $21 peter buys n squared metres of carpet what is the expression which represents the total cost in $

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?