Jeremiah writes the expression 40 minus (startfraction 1 over 10 endfraction times 40) to determine the number of questions answered correctly. Which is an equivalent expression? startfraction 9 over 10 endfraction times 40 40 minus 36 (startfraction 1 over 10 endfraction times 40) minus 40 (40 minus startfraction 1 over 10 endfraction) times 40.
