A restaurant had a total of 15 tables- some long rectangular tables and some round ones. Long tables can seat 6 people . Round tables can seat people . On a busy evening , all 75 seats at the tables are occupied. Write a system of equations that describes the situation . Make sure to describe what your variables represent

What is negative 3/9 times negative 2/8 ?

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

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )