Answer:
Since 20 balloons = 15 minutes
15 balloons =
cross multiply
225/20
= 11.25
minutes
for 6 ballons
6 balloons =
90/20
= 4.5 minutes
For 45 balloons
45 balloons =
45 × 15 /20
675/20
33.75 minutes
Blue
Step-by-step explanation:
Red:
400m/20s = 20 m/s
Blue:
660 m/30s =22 m/s
The blue car is faster
I think the answer is 23
Answer: 5
3+4+5+8 = 20/4 = 5
B, 1 thousand feet is the answer.