One health insurance policy pays people for claims by multiplying the claim by 0.8 and then subtracting $500. Write a rule that describes the insurance payment as a fraction of the claim amount.

Algebra 1 Math
(solving 2 step equations with word problems)

What is the value of x in the following equation. -x ^3/2 = -27

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.