Could you help me with this question? please ⁉️ Over 20 years, the population of a town decreased
by 275 people to a population of 850. Write and
solve an equation to find the original population.

Justify your work/how did you do it?

b) 36

step-by-step explanation:

18 times 2 is 36

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

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.

i'm pretty sure the answer is a. decreases with increase in