Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
p² + 14p + 49 = p² + 2 * 7p + 7²
Comparing with a² + 2ab + b²,
a= p and b = 7
So 2ab = 2*p*7 = 14 p
So, p² + 14p + 49 is a perfect trinomial
Answer:
The sale this month = 79
Step-by-step explanation:
Let the amount he needs to sell this month = x


Note that number of entries = number of months = 5
To maintain an average sales of 77, the amount of sale in month 5 is determined as follows:

Answer:
8f+4g
Step-by-step explanation:
You have to distribute 2 to each number in the parentheses 2 times 4 is 8 and since 4 has a variable it is 8f and 2 times 2 is 4 and since 2 has a variable it is 4g. We don't combine the two because they have different variables. So the answer is 8f+4g. Hope this helped :)
We can use ratio
If the person works for 12 hours and earns $510, for one hour:
12*1=510*x
x=510/12
x= $42.5
Thus the person earns 42.5 dollars per hour.