I think you eliminate the x's first because that's the only way you can solve
Answer:
The surface area is 125.66 
Hope this helps!
Answer:
Since both have equal length
9x - 2 = 6x + 13
9x - 6x = 13 + 2
3x = 15
x = 15/3
x = 5
Length of BC = 6(5) + 13 = 43 cm
Solution:
Array is arrangement of numbers in terms of rows and columns either by rectangles or squares.
So,if an array has 32 squares
The possible arrangements are
32 = 8× 4 or 4× 8
= 16×2 or 2×16
= 1 ×32 or 32 ×1
Here first entry denotes number of rows and second entry denotes number of columns.
F(x) = 3x + 8
f(1) = 3 (1) + 8
f (1) = 3 + 8
f(1)= 11
