I LIKE TO KNOW THE WORKINGS AND CALCULATED ANSWERS ON THIS QUESTION. Thursday 00:09:70 00:07:80 Matt Tom Two boys timed their race from the classroom door to the end of the building.

1. The school record is 6:90. Tom is still how many _ seconds behind the record.

2. The time difference between Matt and Tom is how many _ seconds.

First, off I didn't really get the part where it says 00:09:70 00:07:80 Matt Tom Two boys timed... (Does it mean that Matt is 00:09:70 or is it, Tom)

1. If think that Matt has a time record of 00:09:70

and the school record is 6:90. ---> 9:70. - 6:90. = 2:80.

Anwser for question 1 : 00:02:80.

2. The time difference between Matt and Tom is 00:01:90 seconds

I hope its right :)

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons