I think it'd be 9 seconds, not 100% sure though.
Answer: 4.7 is 10 as much as the number 0.47.
If you multiply 0.47 x 10 it will equal 4.7
AB and AC ................................
Answer:
question does not seem complete, from what i know it sounds like he should add up the test scores and divide it by five, that will give him his average which should be his grade, please update question if possible
i hope this helped ;)
