Answer:
0.1 seconds
Step-by-step explanation:

The ball hits the ground when h=0
H=3.7
Then 0.8+h=0.8+3.7
=4.5
One you can make out of paper, the other is paper. ^-^
Answer:
y = 3/2x + 7
Step-by-step explanation:
The slops is rise over run, so in this case the slope is 3/2 because it goes up 3 units while going 2 units to the right.
The points (0,7) is on the y axis. This means that 7 is the y intercept
With this information, we can follow the format of the slope intercept equation: y = mx + b
m stands for the slope and b stands for the y intercept. Plugging the information in, our equation is:
y = 3/2x + 7