95. $|x|=|y|$

97.

99.

1. $12 million (profit)

2. $-\$5.5$ million (loss)

3. 

4. $t=2$; it represents the ­beginning of September 2018, when there is neither profit nor loss.

5. 8; it represents the profit in July 2018.

101.

1. After 0 second: 320 ft; after 1 second: 432 ft; after 2 seconds: 512 ft; after 3 seconds: 560 ft; after 4 seconds: 576 ft; after 5 seconds: 560 ft; after 6 seconds: 512 ft

2. 

3. $0\le t\le 10$

4. t-intercept: 10; it represents the time when the object hits the ground. y-intercept: 320; it shows the height of the building.