If a sheet of cardboard is 0-8 mm thick. calculate the range of values of the height of 328 sheets of the same cardboard. calculate the maximum and the minimum number of sheets which are in a pile 50 cm high.

we need to see the graph to know but

strong positive is if it is going up from left to right in a straight diagonal line (like this /)

strong negative is the same but from right to left (like this \)

weak negative is the same as strong negative but its more straight line still right to left

and weak positive is the same as strong positive but more a straight line still left to right though.

3.07*10^-4

move the decimal 4 places to the left

.000307

well it says right there your brother is 13; "your age". so lets keep it simple. you are 13 years old and there is no way to put this into any kind of equation without wanting to tear your hair out. who came up with this?