Stephanie, a long distance telephone company charges 7 cents per minute or ...

a long distance telephone company charges 7 cents per minute or a 50 cent minimum charge per completed call, whichever is greater. Find the cost of a 1 minute call

Exponential growth and decay, There are several quantities out there within...

There are several quantities out there within the world which are governed (at least for a short time period) by the equation,

Translating equations into problems, x-45=47

x-45=47

Equations, 2x-4=-9

2x-4=-9

Solving addition equations, Alice bought a round-trip ticket to fly from Ba...

Alice bought a round-trip ticket to fly from Baltimore to Chicago on SuperAir for $250. That was $16 more than she would have on Jet Airlines, which only offered a one-way fair. Ho

Equations with radicals, The title of this section is perhaps a little misl...

The title of this section is perhaps a little misleading.  The title appears to imply that we're going to look at equations which involve any radicals.  However, we are going to li

6 Questions, Scores on a statewide standardized test are normally distribut...

Scores on a statewide standardized test are normally distributed with a mean of 12.89 and a standard deviation of 1.95. Certificates are given to students whose scores are in the t

Vertical angles,

Graph a inequality, -3x+4y>-12

-3x+4y>-12

Inequalities, Nicole has just finished writing a research paper. She has ...

Nicole has just finished writing a research paper. She has hired a typist who will type it. The typist charges $3.50 per page if no charts or graphs are used and $8.00 per pag