Use the table below. Do x and y have a proportional relationship? Explain. x 2, 3, 5, 8
y 5, 7.5, 12.5, 18​

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /

Keith runs 5 miles in 38 minutes. at the same rate, how many miles would he run in 57 minutes

There are 18 female students and 16 male students in a class. which of the following expresses the ratio of female students to male students in simplest form? а) 10 b) 9 to 8 c) 8: 9 d)18/16