Find the sum of the infinite geometric series 1. 12+6+3+
2. 2-1/2+1/8-
3. 7/10+7/100+7/1000+
4. 1/16+1/8+1/4+
5.64,16,4,1
6.2-4/3+8/9-16/27+
7. 1/3,1/9,1/27,1/81
please answer asap huhu

Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.