Question 372836
1) the 300 is the 3/4 of the 2/5 remaining from the morning, that weren't sold in the afternoon
___ (3/4) * (2/5) = 3/10
___ if 300 is 3/10 , then 1/10 is 100 , and 10/10 (all she made) is 1000


2) the difference between the camera (1/2) and the radio (1/8) is ___ (4/8) - (1/8) or 3/8
___ if 3/8 is $120 , then 1/8 is $40 , and 8/8 (all his money) is $320