请大家帮忙拉

katherine8110

At a certain diner,a hamburger and coleslaw cost$3.59,and a hamburge and french fries cost

$4.40.If french friescost twice as much as coleslaw,how much do frech fries cost?（0。90）
我死活算不出这个答案，我觉得答案好象有问题。
(a/b)/c In the expression above,a,b and c are different numbers and each is one of the

number 2,3 or 5.what is the least possible value of the expression?
A 1/30 B 2/15 C1/6   D  3/10  E5/6
这题怎么可能是这个答案啊

katherine8110

怎么没有人回答啊