Answer:
-19
Step-by-step explanation:
4x-8(2-x)
4x-16+8x
12x-16
12(-1/4)-16
-12/4-16
-3-16
-19
$5.44. 15 lbs of laundry equals 6.8 kilograms times .80 gives you $5.44.
Answer:

Step-by-step explanation:
From the question, we understand that the number is n.
Three less than n is:

The square is:

The square equals 7;
So, we have:

Answer:
The probability is 
Step-by-step explanation:
From the question we are told that
The low yield rate is 
The sample size n = 80
Hence the probability that the bottle is bad

=> 
=> 
Generally the distribution of yield follows a binomial distribution
i.e
and the probability distribution function for binomial distribution is
Here C stands for combination hence we are going to be making use of the combination function in our calculators
Generally the probability less than three bottles are bad is mathematically represented as

=> 
=> 
=> 