Malcolm is so good at math that he can do most calculations in his head. it's very rare that he has to use a pencil and paper to answer a math problem. what should malcolm remember to do when taking math tests? a. have his calculator at hand just in case he needs it b. explain in short-answer format how he knew the right answer c. show his work so he doesn't get points taken off d. preview the test when he first receives it

C. Show his work so he doesn't get points taken off

Note how it says he can do "most" calculations, its best to always show work so it shows that you didn't cheat as well as it helping make you more likely to get that answer correct.

the use of “as” in the example to draw the resemblance. some more examples of common similes are given below. common examples of simile. our soldiers are as brave as lions. her cheeks are red like a rose. he is as funny as a monkey. the water well was as dry as a bone. he is as cunning as a fox. simile introduces vividness into what we say.

i believe the answer is: b. mr. head had a long, tube-like face with a rounded open jaw and a short depressed nose.

this is because in the un-revised sentence it said that mr. heads face was long and tube-like, and he had a rounded open jaw. this is not a very grammatically correct because of how it seems to drag on with the and, replaced with, with, makes it sound more fluent in the description.