1. Which situation represents a chemical change! A. burning a pile of twigs
B. boiling water in a teakettle
C. washing the mud off a dirty car

tbh i think all of them are but go with C

Step-by-step explanation:

burning and cooking are 2 examples of chemical change

Step-by-step explanation:

so I think it's is A. B can't be the answer because it's just boiling water since there's nothing in it, it's not really cooking

the cat is blue because the probability of extension towards the prefix of the diameter of the circle could only mathematically equal to the sum of the roots of the carrots from   your garden.

step-by-step explanation:

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb