A student adds 100 g of liquid X to a solution Y in a beaker, places the beaker on a balance, and records the reading as 300 g. If the mass of the empty beaker is 50 g, what is the mass of solution Y in the beaker?

Read the passage. from “an episode of war” by stephen crane the lieutenant was frowning and serious at this task of division. his lips pursed as he drew with his sword various crevices in the heap, until brown squares of coffee, astoundingly equal in size, appeared on the blanket. he was on the verge of a great triumph in mathematics, and the corporals were thronging forward, each to reap a little square, when suddenly the lieutenant cried out and looked quickly at a man near him as if he suspected it was a case of personal assault. which clause shows that the story’s events are changing?

When children heard an interesting story about a sympathetic and resourceful african-american child, the aim was to provide them with?

The persians landed in the plains near athens. as their army greatly outnumbered that of the greeks, the greeks hoped to find aid from nearby sparta. a long-distance runner named pheidippides was sent from athens to sparta to request , but the spartans were not able to send more soldiers at the time. regardless, the greeks were still able to win the battle. centuries later, legend developed that a runner had been sent from the battle to athens after the greek victory. after reaching athens, the runner proclaimed, "we are victorious! " and then fell to the ground and died. this legendary story is the inspiration for the modern long-distance runs that are performed today. this passage refers to the events of which battle during the persian wars? a. battle of thermopylae b. battle of salamis c. battle of plataea d. battle of marathon