Un gusano se encuentra en el fondo de un pozo. Durante el día sube 2m y durante la noche baja 1m . ¿Qué altura ha subido después de tres días y dos noches?

5500 dollars is placed in an account with an annual interest rate of 6.5%. to the nearest tenth of a year, how long will it take for the account value to reach 19700 dollars?

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.

Hi my sisters and brothers can tell me the answer because i don’t understand the question