Tom spent half of his allowance going to the movies. he washed the family car and earned eight dollars. what is his weekly allowance if he ended up with twelve dollars?

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?

An angle that measures between 90 and 180° is called a(,

For which pair of functions is (gof)(a)=|a|-2?