A school administrator tells everyone in the building that they will be having a fire drill randomly sometime during the school day which is from 8 a. m. to 3 p. m. If second period is from 9:00 a. m. to 10:00 a. m., what is the probability of the fire drill happening during second period? Please explain your answer.

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 expression is equivalent to 3^3 + 2^2?

Which equation expression the relationship between the number of boxes b and the number of cans c and the proportion is 48