Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the following sequence with the given first tem, a1, and common ratio, r. Find a8 when a1 = 3 and r = 4.
a8= . (Type an integer or a decimal.)

Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell