Consider this equation: x-9-2x + 2 = 1
Which is an equivalent equation after combining like terms?
8
EX-11=1
-4
-7=1
(-7=1
-x-11=1

Timed***how else can the sequence for row 1 be written? notice: square a: 1 penny = 20 square b: 2 pennies = 21 square c: 4 pennies = 22 the sequence formed is geometric, with a1 = , and common ratio r = .

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

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.