No No because it says a triangle has sides of length of 11 inch 59 and 61 inch is the triangle a right angle I mean triangle well no because it says 11 or side to side should be equal in once I could be wrong so it’s not
75+37=112. 180-112=68. 68-7=61. 61/5=12.2. so x=12.2
It is prime, it has no factors besides 1,23
Given that

and

, if

is an arithmetic sequence, then the common difference between successive terms is

.
You then have




So the explicit formula for the

th term is