Can anyone of you lovely people help me with my math?

Which is the graph of the function y=2(4)^x

Find the vertex of the function given below y=x^2-6x+1

Afamily of five rents a kayak and splits the total time, k, equally. each family member spent less than 25 minutes kayaking. which values can be used to complete the math sentence below so that it accurately represents the situation? intro done