Answer: 
Step-by-step explanation:
Given
Sean paints 
of a fence in 1 hour
Sean paints part less in the second hour
So, fraction he paints in the second hour = 
Paint in 2 hours = 
=
No, he did not finish his job
Answer:
9.3 in
Step-by-step explanation:
Perimeter = add up the sides
12.3 + 5.4 + x = 27
17.7 + x = 27
x = 27-17.7
x = 9.3
Answer:
y= (-3x+8)/4
x = (-4 +8)/3
Step-by-step explanation:
3x + 4y = 8
-3x -3x
4y = -3x +8 divide ALL by 4
y= (-3x+8)/4
3x + 4y = 8
-4y -4y
3x = -4 +8 divide ALL by 3
x = (-4 +8)/3
i) Area = length x width
=250 x 100
= 25000 cm2
ii) it is a square so the sides are equal
Area = 10 x 10
= 100cm2
iii) 25000/100
250 tiles will be needed
Iv) one tile is 4.75 dollars
Total tiles are 250
Cost for tiling
=250 x 4.75
=1187.5
Hope this helps
The cost would be $31.50 because in this case 30% is 13.5.
