2x + y =8 and 4x -2y = 6

if your trying to find the x and y intercept its

2x + y =8

x= (4,0) y= (0,8)

4x -2y = 6

x= (3/2, 0) y= (0,-3)

Step-by-step explanation:

Part A:   42° < x < 176°

Part B:  See Explanation

Part C:  No

Step-by-step explanation:

Required temperature of benzene to ensure it remains liquid = x

Boiling temperature= 176°F

Freezing Temperature= 42°F

So the inequality can be written as:

42° < x < 176°

(GRAPH IS ATTACHED)

The Red shaded region represents all the possible value.

The Red Open circles represent boundaries of the solution. The values not included in the solution

As it is necessary for benzene to stay in liquid form for the research, it should always stay above 42°F.

If the temperature of the building fell to 20°F , research cannot be conducted as benzene will freeze.