Boris makes 9 dollars for each hour of work. write an equation to represent his total pay p after working h hours.

Graph the equation by plotting point x=2

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.