1.) An unknown substance has a mass of 150g and displaces 20.50mL of water -Calculate the density
-Identify the substance

2.) An unknown substance has the dimensions of 20cm x 75 cm x .5 cm and a mass of 59,250 g.
-Caculate the density
-Identify the substance

3.) An unknown has a volume of 100mL and has mass of 80g.
-Caculate the density
-Identify the substance

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Step-by-step explanation:

6

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.