Answer:
(-7)×(-7)=+49
You change the signs and multiple
Answer:

Step-by-step explanation:
We need to sum the following two expressions:


expanding the polynomial in the numerator:


This is the most simplified form we can get:

Given:
The expression is:

To find:
The value of the given expression when
.
Solution:
We have,

Substituting
in the above expression, we get




Therefore, the value of given expression at
is 59.
If the number of employees is an indicator of a successful business, the company that Ajay should invest is company 1 because it is adding six employees each year while company 2 is multiplying its number of employees by six each year. You can also see form the table above that as the number of years increased, the number of employees also increases. Company 1 and 2 is directly proportional with the number of years and the number of employees.
Hope this helps!
They basically make a profit of $2.85. Because $9.95 - $7.10 = $2.85.
To break even you would have to sell 4000 footballs. Because 11,400 / 2.85 = 4000.