Answer:
90
Step-by-step explanation:
Since the sum of a circle is 360, just divide 360 and 1/4.
Answer:
80*
Step-by-step explanation:
The volume is length * width * height. Length * width is 4 * 5 or 20, so we have that 20 * height = 200. Divide by 20 to get height = 10.
Answer: x=-y+8 and x=y+6
Step-by-step explanation:
Answer: Most of them cross each other once so I am not sure which one is the answer (sorry)
Step-by-step explanation:
x+y=7 is parallel to 3x+3y=3 and -6x-6y=3
3x+y=-1 and 6x+2y=-2 have infinite solutions togther (both are on top of each other)
The rest of the ways cross each other once
