basic shot clock question

[number 26]

hello. easy one. came up tonight. high school boys game. ball in forecourt. shot clock winding down. seven seconds. jump ball. possession arrow in effect. ball re-awarded to offense. out of bounds, baseline. do you reset the shot clock to 35 seconds? or, does it stay at seven seconds? thanks. (by the way, ref tonight had the shot clock reset at 35)