Write an equivalent sentence for the statement.An number n is divisible by 3 if and only if the sum of the digits of n is divisible by 3. (Hint: Use the fact that 
is equivalent to 
A. If a number n is divisible by 3 then the sum of the digits of n is divisible by 3, or if the sum of the digits of n is divisible by 3 then the number n is divisible by 3.
B. The sum of the digits of n is divisible by 3 or the number n is divisible by 3.
C. A number n is divisible by 3 and the sum of the digits of n is divisible by 3.
D. If a number n is divisible by 3 then the sum of the digits of n is divisible by 3, and if the sum of the digits of n is divisible by 3 then the number n is divisible by 3.
Answer: D
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A. 16.02 ft B. 6.799 ft C. 18.90 ft D. 44.53 ft
Find the number of terms in the sequence or the sum of the sequence as requested.Find the number of terms in the following arithmetic sequence. 1, 5, 9, 13, . . ., 117
A. 30 B. 27 C. 26 D. 5
Write true or false for the statement.A right triangle has one angle of 90°.
A. True B. False
Use a calculator to find the root or power rounded to six decimal places.
A. -4.431048 B. 2.105005 C. 4.431048 D. -2.105005