-16t^2+400=0
16t^2=400
take square root on both sides.

4t=20
t=20/4
t=5
1. 0-2-8
2. Use the percentage section of a calculator
3. Rafael 10 secs
4.the line is going through the origin 0,0 and the line is straight
5. Use percentage section of calculator
6. 10,000
Answer:
1.5
Step-by-step explanation:
Answer:
$29.25
Step-by-step explanation:
39 x .25 = 9.75
39 - 9.75 = 29.25
Answer:
52°
Step-by-step explanation:
<D = 360 - (78+106 + 124)
<D = 360 - 308
<D = 52°