Agustín hizo lagartijas durante 555 días. Los siguientes puntos de datos representan el número de lagartijas que hizo cada día. 21,24,24,27,2921,24,24,27,2921, comma, 24, comma, 24, comma, 27, comma, 29
Calcula la desviación estándar del conjunto de datos.

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.