Find the SS and mean of 12, 11,10,9,8 7,6,5 and 8,7,6,5,4,3,2,1​

Y=3x+1 so the first one

Your answer would be ahere is how: perimeter is how long all the sides are. in a rectangle, there are two sets of parallel sides. so, to find this, we would to the following.(15x2)+(4x2)30+838if you have questions ask! and mark me brainliest! i really wanna level up : 3

The answer is that the rate of change is $50 per 1 monthhope this ; )