Kirk's grandparents are really enjoying their portable music players and have downloaded many more albums. maude now has 225 albums, 135 of which are heavy metal. claude now has 420 albums, 270 of which are heavy metal. which of kirk's grandparents has a higher probability of listening to heavy metal?

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

Write two subtraction equations that are equivalent to 5 + 12 = 17.

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) .