Please help me pls please please

I don’t know if it should be in fraction form or decimals but it’s more accurate the way I left it. I get the 3,5 from adding the numbers in the ratio. Then you multiply with what you want (the 1 is the other family members and the 0,5 is the younger sister) and divide by the total.

Ifound this on google “that means that the graph of a function with direct variation has these features: it is a straight line: because the slope is the ratio y/x = k. it passes through the origin (0,0): because y = kx = k (0) = 0.” i hope this you for what your looking for

Idon’t know what the answer is i wish i could