What happens to the acidity of solutions A and B after dry ice is added? The pH of solution A decreases, and the pH of solution B increases.
The pH of solution A increases, and the pH of solution B decreases.
The pH of solution A increases, and the pH of solution B increases.
The pH of solution A decreases, and the pH of solution B decreases.

"exterior angles = 360 / number of sides.

60 = 360 / sides

sides = 360 / 60

sides = 6"

option (a)

step-by-step explanation:

step 1:   take 2 number whose product equal to 25..

and sum of those two number are -10

step: 2 for example here if we take 5,5 are the number,,

5*5=25

and

5+5=10

but we need -10

so if we take   -5,-5

so -5*-5=25

and -5+(-5)=-10

s0

come the equation

replace -10x by these number

like -5x -5x+25

take common

x(x-5)-5(x-5)=0

(x-5)(x-5)=0

12 dolars one is cheaper becasue 3 pairs is 6 means is sock is 2 while the 12 is cheaper