The following dot plots show the ages of two groups of tourists. Make a comparative inference based on the mean values. What is the first step to finding the mean age for each group? PEARSON ANSWER ASAP PLEASE

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) .

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30