Marsha recorded the time it took six children of different ages to run one lap around the track using the line of best fit, which is the closest to the length of time it should take marsha’s 8 year old son to run one lap? A.168
B.176
C.182
D.190

D.190 i think sorry if  u get it wrong but that is what my "15" year old friend said hope he is correct.

Step-by-step explanation:

too hard the other guy did it

step-by-step explanation:

answers

\3. yes the presentation (i.e. odd numbers being written as differences of two squares) is possible for all odd natural number however the presentation may not be unique. for example,  57=112−82=292−28257=112−82=292−282.

\4. 2 can't be written as a difference of two squares because 4-1=3 and 1-1=0 and the difference of squares grows to integers larger that 3.

can i get some in proving questions 1 and 2?