Answer:
B
Step-by-step explanation:
The circumference is just diameter x π (3.14 in this case) so 42 x 3.14 = 131.88
Step-by-step explanation:
Since, y varies directly as x:

Answer:
45%
Step-by-step explanation:
There are 5 A's out of a total of 11 letters which is 5/11. 5/11 as a decimal is 0.45 which, as a percentage, is 45%
5’3 is 63 inches since her brother is 1/3 larger so 63/3= 21 inches