Answer:
A. 31 cm
Step-by-step explanation:
Hopefully its right :)
I got you, just follow my work
-2x+3=-5x+9
-2x=-5x+6
3x=6
x=2
Plug x back in
-2(2)+3= -1
y=-1
FINAL ANSWER: (2,-1)
Answer:
a. 10 inches
b. 8 inches
c. 
Step-by-step explanation:
a. At side 0, perimeter is 0*4 = 0 in. At side 2.5 inches, perimeter = 2.5*4 = 10 inches, a change of 10 - 0 = 10 inches
b. At side 1, perimeter is 1*4 = 4 inches. At side 3 inches, perimeter = 3*4 = 12 inches, a change of 12 - 4 = 8 inches.
c. We can express the change in the square's perimeter P in terms of the change in the square's side length s as

Practice, practice & practice.
Answer:
1.7
Step-by-step explanation: