Step-by-step explanation: If Mat sold 8 times as many apples as how much he gave to his son, this means he sold 40 apples. Altogether, he loses 45 apples (5 to his son, 40 sold), and this is 1/2 of the original numbers of apples. Hence, the original number of apples was 90
The depth of Point A: 800 ft. The depth of the Point B : 160 ft. The distance from the point A to point B: 800 - 160 = 640 ft. The fraction is: 640 / 800 = 4/5