Hopes this helps if right please mark as brainlist:
Answer: -12x^2 + 15x
.6 divided by 10 is .06 so .6 is 10 times more than .06. Hope this helps!
the second one 6,6,6 it is a square all the others seem like a triangle
Answer:
First one.
-3 is added to the previous term.
An hour and 15 minutes i believe. not 100% though