What is the equation of the line? A. Y= -1/9x-10
B. Y= 1/9x-10
C. Y= -9x-10
D Y= 9x-10
Please help!!!

Write an explicit formula that represents the sequence defined by the following recursive formula:

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 a proper fraction? a. 9⁄8 b. 5⁄6 c. 7⁄3 d. 4⁄2