Ali finished his history assignment in 1/4 hours. then he completed his math assignment in 2/3 hours. what was the total amount of time ali spent doing these two assignments?

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655