Help!!

#26:

| -5|  =  5

| 5 |  =  5

| -3 |  =  3

| 8 |  =  8

Therefore,  -5  and  5  have the same absolute value.

 

#27:

a)  For the first 10 days, the stock had a total increase of  10 x $0.30  =  $3.00.

b)  For the next 10 days, the stock had a total decrease of  10 x $0.45  =  $4.50.

c)  For the last 10 days, the stock had a total increase of  10 x $0.25  =  $2.50.

d)  The total increase was  $3.00 - $4.50 + $2.50  =  $1.00.

e)  What the stock will do in the future is unknown ...