2. michael decided to put some money in the stock market. he checks at the end of each day to see if the value
of the stock has increased or decreased. the table shows the change in his stock value, in dollars, for the first
3 days.
change in stock value
day
($)
day 1
+1.30
day 2
+1.12
day 3
-0.30
day 4
day 5
(a) what was the total change in his stock's value from day 1 to day 3? show your work.
(b) on day 5, michael said the total change in the stock value from day 1 to day 5 was zero. give
possible values for the changes on day 4 and day 5. show your work

2015 they have a perecent

Dagriculture is the answer -explanation-

Can't really understand try to post again

Ok here we go ..there are plenty of ways to solve such math problems but we will go for the smartest and easiest ..5x+2y=7  -2x+6y=9we rearrange them into the following ..by multiplying the 1st equation by 2 it becomes 10x + 4y = 14we rearrange it and so it becomes 10x = 14 - 4yas for the second equation we multiply it by 5 and rearrange it so it becomes as to the following ..-10x + 30y = 45rearranging so 10x = 30y -45now 10x equals both 14 - 4y and 30y -45so   14 - 4y = 30y -4531 = 26yy= 31/26 = 1.19 or around 1.2so by now we can calculate x easily as  -2x+6y=9so 2x = 6y -9 = 6 * 31/26 - 9 = -1.84  then x = - 0.92 or around -0.9best luck!