Eight algebra questions (explanations would be appreciated):

use substitution to solve the following:

1)
y=x²
y=x+2

2)
y=x²+3
y=4x

3)
x²+4y=1
y=x+1

4)
x²-3y=-2
y=4+x

5)
x²-2y=-4
y=6-x

6)
x²+4y=9
y=x-3

7)
x²+5y=16
y+x=2

8)
y=x²-6x
3x-y=-10

Question 3 (essay worth 10 points) (03.06 mc) part a: max rented a motorbike at $465 for 5 days. if he rents the same motorbike for a week, he has to pay a total rent of $625. write an equation in the standard form to represent the total rent (y) that max has to pay for renting the motorbike for x days. (4 points) part b: write the equation obtained in part a using function notation. (2 points) part c: describe the steps to graph the equation obtained above on the coordinate axes. mention the labels on the axes and the intervals. (4 points)