Answer:
64
Step-by-step explanation:
The triangles are proportionate to each other because they have the same angles. Multiply 66 by 3. 198 is the answer.
Answer:
90
Step-by-step explanation:
How many zero can be found in the answer and why? Hi, I want to write ^ to designate powers so I will write 50^20 for 50 power of 20. Since no power of two ends with a zero the number of zeros in (50^20)(20^50) is 90.
Answer: (a)
(b) 
Step-by-step explanation:
Given: Number of white balls : 6
Number of red balls = 9
Total balls = 15
(a) The probability that both balls are white is given by :-

∴ The probability that both balls are white is
.
(b) The probability that both balls are red is given by :-

∴ The probability that both balls are red is
.