If 12 is replaced with 3 in the following set what will happen with the value of the range 28,45,12,34,36,45,19,20

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?

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)