Ok first of all you would have to put 41/4 as a mixed number. Secondly it would be 4 10.25/100. Then you have to subtract that by 3/4
So our two equations are y=-8x-4 and y=-16, and since in both equations, something equals the same y, those two are the same. So we can combine the two into -16=-8x-4. In the question, they are asking to solve for x. So to do that, you need to isolate your variable. Now for solving algebraic equations, you use reverse PEMDAS (SADMEP), meaning you add 4 to both sides to clear the -4 one the rights side to get -12=-8x. Then you divide both sides by -8 to get 12/8, which simplifies to 3/2.
A1=-15
a2=a1+d→-4=-15+d→d=11
