1. a technical-support company charges $10 per month plus $36 per hour of phone support. if you need to spend less than $100 per month on support, how many hours of can you get
2. 8r-r/6> 1/6-8

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Which of the following is true for the relation f(x)=2x^2+1

What is the value of x in the this question ?