Answer: Option d.
Step-by-step explanation:
It is important to remember the following proporties in order to solve the exercise:

In this case you have this expression given in the exercise:

Since equivalent expression have always the same value, you can simplify the expression given in order to find an equivalent expression.
Therefore, applying the corresponding properties, you get the following equivalent expression (Remember that
):

100 papers x 4 boxes = 400 papers
Anything over 400 papers can be the answer.
Get multi calculator you can scan those problems and it gives you the awnser
Answer:
Hi the answer is A, hopefully i helped you
Answer:


Step-by-step explanation:
to figure out b we can consider the following formula:

the form of vertex coordinate given by

so according to the question

by order pair we obtain:

now substitute the value of h and a to the formula:

simplify multiplication:

cross multiplication:

divide both sides by -1:

now we need to figure out C to do so substitute -7 for x and -5 for y which yields:

simplify square:

simplify multiplication:

simplify addition:

cancel 49 from both sides:

hence,