My sum of ones digit and tens digit is also 10 however, my ones digit is greater than my tens digit. i am a prime number less tha 30 what number am i?

prime numbers those are less than 30:

2, 3, 5, 7, 11, 13, 17, 19, 23, and 29

My sum of ones digit and tens digit is also 10
1 + 9 = 10

my ones digit is greater than my tens digit
9>1

number is 19

Less than 30
digits add to 10
the digits taht add to 10 and less than 30 are
19
28
the prime one is 19

It says in the questions that it is 6.5?

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.