Hola queria saber si me pueden ayudar con una tarea por que no la entiendo, se los agradeseria mucho. 3) Hallar el valor numérico de cada monomio para los valores que se indican.
a)5x^2 para x = 1,x = 0 y x = 2
b)-x^4 para x = 1,x = 0 y x = 1
c)- 3/5x^2 para x = -5 y x = 10

What is 20+(5 x 2/5 )+ 3 show your work

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?