Answer:
-6
Step-by-step explanation:
Answer:
0.6 liters paint will he need to cover 
Step-by-step explanation:
Direct Variation states that the two quantities are related in such a way that increase in one quantity results in a corresponding increase in the other quantity and vice versa, then such type of a variation is called a direct variation.
i.e 
It is given that the painter uses 1.2 liters of paint to cover 
This is the situation of Direct Variation: As less area cover, less liters of paint.
Let two quantities are x and y;
x represents the area covered by painter
y represents the liters uses by the painter.
Then, the ratio of any two values of y is equal to the corresponding value of x.
i.e,
or

therefore, from the given information we have;
Simplify:

Therefore, 0.5 liters paint required by the painter to cover the area 
For this question all you do is plug in the values
8(1/4)-1+0.5(10)
8 times 1/4 =2
.5 times 10 =5
2-1+5
1+5
6
therefor the answer would be
6
Answer:
The perimeter of the rectangle is 10.5p + 10.7q - 3.8r
Step-by-step explanation:
The perimeter of the triangle is calculated by adding the values of the three sides.
In this case, the values of the individual sides are expressed algebraically.
We can still add them, however, taking into consideration like terms.
Perimenter of triangle = (4.1p+4.4q) + (6.4p-5.1r) + (1.3r+6.3q)
Perimeter = 4.1p + 6.4p + 4.4q + 6.3q -5.1r + 1.3r
Now we have grouped them, we can add the different groups separately
Perimeter = 10.5p + 10.7q - 3.8r
Therefore, the perimeter of the rectangle is 10.5p + 10.7q - 3.8r