C. translation is moving to a different spot. rotation has to have the letters in the same spot when rotating it. reflection is a mirror so its C.
The 31st term of this sequence is 189.
9, 15, 21, 27, 33 (5), 39, 45, 51, 57, 63 (10), 69, 75, 81, 87, 93 (15), 99, 105, 111, 117, 123 (20), 129, 135, 141, 147, 153 (25), 159, 165, 171, 177, 183 (30), 189.
Answer: First option is correct.
Step-by-step explanation:
A number in an expression is a term that contains no variables.
So, it is known as constant term.
if any term is with variable or variables, then it can't be consider as a number.
Then, it becomes only a term.
But if there is no variables in a term is present, then it is called to be number.
Hence, First option is correct.