PLEASE HELP!! I HAVE 30 MINS #1) 9a+2-6a

#2) -p^6

#3) 5n^2

#4) -10n^4+9-7n^5+n^6

Answer & Step-by-step explanation:

#1)  3a+2    

#2) Please tell me what you need to find for this one in the comments

#3) Please tell me what you need to find for this one in the comments          

#4) n^6−7n^5−10n^4+9

Hope this helps ;)

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3

5/12, or 5: 12

step-by-step explanation: