Answer:
11) 0.6
12) The maximum height of the ball was 2[ seconds] after it was thrown (I am assuming because the answers are cut off a bit.)
13) $2.50
14) (2,-15)
15) I don't know, since I can't see all the graphs and options. But I want to say the sideways parabola, or the only one shown in the image given
Answer:
3 : 1 : 2
Step-by-step explanation:

Answer:
=60
Step-by-step explanation:
18 + 12
=30
18/30 × 100%
=60
The answer is 7/10 the common demontior is 10 so the numbers change to 2/10 + 5/10 witch equals 7/10