Twice the sum of Paloma's age and 15 is 106. How old is Paloma?

Which of those sequences is a geometric sequence

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 describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)