Evaluate the expression for the given values of the variables. (n + 5)2 for n = −7

When n = −7, the expression is equal to...

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 : /

Angie has saved 3/8 of the amount she needs to buy a bike. clive has saved 7/10 of the amount he needs to buy a skateboard. what is the difference between clive's and angie's fraction of savings?

If two points are given,then exactly one line can be drawn through those two points.which geometry term does the statement represent