What's the next number in this sequence 27, 19, 11, 3

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?

He concluded that a heavier object dropped from the same height as a lighter object will land

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true