2C4H10(g) + 1302(g) →8CO2(g) + 10 H2O(g) Given 2.78g carbon dioxide calculate the amount in grams of oxygen needed to complete the
reaction.

This is about circle theorems. someone asap : (

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?