What is 15%of 40? what is the answer

What is the value of x in the diagram below?

Will give let f(x)=2x and g(x)=[tex]2^{x}[/tex] graph the functions on the same coordinate plane. what are the solutions to the equation f(x)=g(x) ? enter your answers in the boxes x=[? ] or x=[? ]

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.