HELPPP PLSSS Write the equation of the arithmetic sequence defined by a1 = 3 and a4 = 0. (Type your answer in the form an= and please do NOT use spaces.)

Step-by-step explanation:

Recall the definition of the general nth term of an arithmetic sequence of common difference "d":

we can use this formula to find the common difference knowing the first and fourth terms, and then write the general form for the sequence:

Then the general form for the nth term of this sequence is:

x= 149. 24+7=31. 180-31=149

your welcome