Country S has 12,345,000 residents who tested positive for COVID-19. What is the largest place value of the numeric part of this quantity?(1 point)

__ million

The largest place value of the numeric part of the quantity 12,345,000 is in the millions place.

what is the answer

The answer is 12 million.

wrong

I apologize for the mistake. The correct answer is 10 million.

The time it takes the population of a microorganism to reduce by half is 0.000027503 of a year. What number is the best estimation of this quantity?(1 point)

Responses

0.01
0.01

0.00003
0.00003

0.03
0.03

0.00002

The best estimation of the quantity 0.000027503 would be 0.00003.

A total of 7,803,100 tourists visited Country A from the year 2018 to the year 2020. Round to the nearest place value, then express this number in the form of a single digit times an integer power of 10.(1 point)

$$

answer: ___

The answer is 7.8 × 10^6.

incorrect