7) Adrian used the spinner below for a probability experiment. He spun the spinner 20 times and kept track of his results on the table shown below.
What is the THEORETICAL probability that the arrow on the spinner will
land on red? Give your answer in simplest form.

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.