Answer:
C
Step-by-step explanation:
Once

We know that 
There are infinity values for
, but considering 
Below we have all the solutions for 
Negative:

Positives:

We can see that 
Answer:
The total cost = $714
Step-by-step explanation:
Given
The total cost can be determined by adding the costs of all the pieces of equipment.
Thus,
Total cost = Monitor cost + Scanner cost + Keyboard cost + Printer cost
= $287 + $58 + $49 + $320
= $714
Therefore, the total cost = $714
Answer: 4
Step-by-step explanation:
Amount of chocolate chips = 6 1/2
Amount of cups of flour = 5/2
The cups of flour should be changes to a mixed fraction and this will be 5/2 = 2 1/2
The question simply means we should find the difference between the fractions given and this will be:
= 6 1/2 - 2 1/2
= 4
Answer:
The number of pages that Polina read was 90 and the number of pages that Marcus read was 18
Step-by-step explanation:
Let
x -----> number of pages that Polina read
y ----> number of pages that Marcus read
we know that
x+y=108 ----> equation A
x=5y -----> equation B
substitute equation B in equation A and solve for y

Find the value of x

therefore
The number of pages that Polina read was 90 and the number of pages that Marcus read was 18