16) y varies directly as x is the same thing as y=mx where m is the constant for the first equation where the length is 7 and weight is 49 there fore 7=m49 in which m=1/7 so to find the length of the 2nd equation y=m63 y=1/7 x63 y=9 inches
17)The raiser with the $6.25 would raise more money because if 25 ticket is sold and money received is $125 then each ticket is sold for $5 which means if the ticket is sold for $6.25 then 25 would bring in $156.25
