Please help begging ya if you don’t know it move on but if your smart kind you would help (NO LYING) the clearest picture I can get!!! Please help

Which equation represents the partial sum of the geometric series?

Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.