On January 1, 1980 a city had 100,000 people. During the year 1,000 people died, 2,000 babies were born, 3,000 people moved out, and 10,000 moved in. How many people were in the city by the end of 1980?

109,000

Step-by-step explanation:

100,000-1000=99000

99000+2000=101000

101000-3000=99000

99000+10000=109,000

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere