The United States, which has the world's largest epidemic, has confirmed 22,727,857 people, an increase of 46,078 people in a single day, and more than 40,000 cases in a single day for 5 consecutive days. The global share remained at 25.7%. The death toll reached 130,163, an increase of 1,380 in a single day, and the global share remained at 25.3%.

180 square centimeters

step-by-step explanation:

the radius is 2 times the diameter.

step-by-step explanation:

step-by-step explanation:

659

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.