Not sure the question but the only one that makes since is Line 1....
3*x^2 =6x^2
3*2x=6x
and the -7 its just in a different form
The answer should be 90.8 because when you add up all the temp. you get 454 then you divide by # of days which is five
hope this helps :)
4 divided by 12 is 1/3.
So, she would sprinkle 1/3 of a gram on each cupcake.
Step one know that across from 128 is 128 because of vertical angles
step two a straight line =180 so 128 -180 = 52
step three know you know 3k+4=52 so subtract 4 from 52 and that gives you 48 then divide by 3 to find k and 48/3 is 16
so k +16
because 16x3 is 48 then add 4 which is 52 and 52 plus 128 is 180