Anyone know this answer? Please help and Thank you!!

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers