EWW2004

2apples-1apple=1 apple

3 baskets = 120 lbs

120/3= 40lbs

1 baskets = 40 lbs

40*4=160lbs

4baskets=160lbs

or

3x=120,4x=?

x=40

4*40=160lbs

-2^2 can be either:

=(-2*-2)

=4

or

=-(2*2)

=-4