On Elisa's birthday, her mom made a chocolate cake. After the party,2/3 of the cake was left. The next day, Elisa ate 1/3 of what was left. Choose the model that shows what fractions of the cake Elisa ate. answer options:

2/6
4/9
2/9
2/3

If jaime wants to find 60% of 320, which table should he use?

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true

Aquadrilateral has exactly 3 congruent sides davis claims that the figure must be a rectangle why is his claim incorrect.