If an equation includes a variable and involves both multiplication and subtraction, what operations will you need to use to isolate the variable?

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30

We just started the introduction into circles and i have no idea how to do this.