The price of a cup of coffee was $2.15 yesterday. Today, the price rose $2.30. Find the percentage increase round your answer to the nearest tenth of a percent.

7%

Step-by-step explanation:

First, you find the difference between $2.30 and $2.15 to get the amount of change between the two numbers. We get $0.15, so we know that the change was 15 cents more. Next, we find the percent that 25 cents is to $2.15. You get 0.06976... and we can round it to the nearest tenth, which is 0.06. Then you convert that to a percent and you get 7% :)

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.