Out of the following choices, where is the insignificant digit in 0.09040?
--ten-thousandths
--tens
--thousandths
--tenths

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?

When turned about its axis of rotation, which shape could have created this three-dimensional object?

Ajar of gumballs contains 4 reds, 2 greens, and 6 blues. what is the probability of getting two blues in a row without replacement?