1. the students were given the task of finding the density of a brownie. johnny decided to eat ½ of his brownie before conducting his experiment. how would johnny’s results compare with the rest of the class?

0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture