The U.S. national debt was $2.9617×10^13 in 2021 and $3.98×10^11 in 1971. Find how much the debt increased in the 50-year period. (1 point)
2.9219 x 10^13
2.9212 x 10^11
3.0015 x 10^13
1.0183 x 10^24
To find the amount the debt increased in the 50-year period, we subtract the debt in 1971 from the debt in 2021.
$2.9617×10^13 - $3.98×10^11 = $2.9217×10^13
Therefore, the correct answer is 2.9217 x 10^13.