A. (4,20)
y=20 5x-2y= -20 5x+3=23
A Is Correct
B. (5,28)
y=28 5x-2y= -31 5x+3= 28
B Is Correct
C. (4,23)
y= 23 5x-2y= -26 5x+3 23
C Is Correct
D. (-5,25)
y= 25 5x-2y= -75 5x+3 = -22
D Is Correct
Answer:
Step-by-step explanation:
(4b^2+3)(4b^2-3)
since it is the expanded form of formula a^2-b^2=(a+b)(a-b) we can write,
=(4b^2)^2-(3)^3
=16b^4-9
27+5= 32 total square feet.
32/4= 8 square feet per roll.
120 * 45 % = 120 *0,45 = 54 £
120 -54 = 66 £