What is the explicit rule for this geometric sequence? a1=4; an=1/3⋅an−1 a) an=1/3⋅4^n−1 b) an=4(1/3)^n−1 c) an=4(1/3)^n d) an=1/3⋅4^n

36 inches/second = yards/minute how many yards?

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?