Answer:
21% of his students wear glasses
Step-by-step explanation:
The answer is 21% because 21/100 =21
Hope it helps.
Answer:
The number of boys who play tennis is 36.
Step-by-step explanation:
Let the number of boys who play tennis is x.
number of boys who play cricket = y
x = 3 y..... (1)
12 boys plays both cricket and tennis.
According to the question,
x - 12 = y + 1 2
3 y - 12 = y + 12
2 y = 24
y = 12
So, the number of boys who plays tennis is x = 3 x 12 = 36.
Answer:
<h2>3 and -8</h2>
Step-by-step explanation:


It means the null space is just the 0 vector