19. -x-2 = 2/3x + 3
5/3 x + 3 = -2
5/3x = -5
x = -3
20. none are correct, you can double check me by plugging in the x and y values in the coordanates into the first problem none of them worked out in the first equasion so no need to test the second
21. -3 is the answer, capable of being done by using desmos
Answer:
slope = 
Step-by-step explanation:
Calculate the slope m using the slope formula
m = 
with (x₁, y₁ ) = (5, 3 ) and (x₂, y₂ ) = (9, 6 )
m =
= 
Answer:
c
Step-by-step explanation:
-2.25*3 = 6.75 decreased (since negative)
Answer:
A
Step-by-step explanation:
1.3 times.45+1.3
Answer:
(50-10) ÷ (3+2)
Step-by-step explanation: