100g of radio isotope was reduced to 12.5g after 81 days. Calculate the half life of the radio isotope

Read the following short excerpt of student writing. use your vocabulary and grammar knowledge to determine which suggestions you would make to improve his or her grammar and word choice. i really thought she loved me but i discovered her grave betrayal one afternoon. it was easy to figure out because she accidentally sent a text to me that was meant for him. i was confused by the text because it said, "don't tell mike." i felt insulted that she thought she could get away with this infidelity. at first i felt very angry bitter and hateful but then i felt so hopeless and depressed. i longed for her to call me. i thought if i could just hear her pleasing voice, maybe then i would not be filled with such bitterness. instead of calling her i talked to another friend who is good at listening and feeling my pain. talking with her makes me feel euphoric. i think i may be on the road to recovery.what word would you suggest to replace the underlined word or words in this excerpt? instead of calling her, i talked to another friend who is (good at listening and feeling my pain). talking with her makes me feel euphoric. amorous sentimental empathetic grave

Sarah is having a tip-of-the tongue experience with the name of an indian restaurant that recently received a great review. she suspects that it may start with a “k” sound and consist of two syllables, but all that comes to mind is canton or ccouscous. which of the following choices would be the most likely name of the restaurant?

When you wear your earbuds while working out, your sweat damages them and they die sooner