Answer:
16 dolls and 12 trucks
Step-by-step explanation:
simple math
Jenna is correct, radical 2 is not rational but 2 is
Answer:30 m --- 4
40 m --- 5
50 m --- 6
Step-by-step explanation:
This kind of problems are solved using Bernoulli's distribution. Everytime you have a win/lose scenario, and you know the probability
of winning, and you want
successes over
trials, you have the following probability:

You want the probability of having at least three successes, i.e. you are interested in the cases k=3 and k=4. The corresponding probabilities are


So, the total probability is 
Angle on a point = 360°
Angle 1 = 360/8 = 45°