Change background color with IF statement

I would like to make a formula that will highlight a specific range if two statements are true. I have started with =(IF(AND(A3>100),(A7>2%)Range(A3:A10)... this portion gives no errors, but I cannot find the command to turn the background color for this range red. Any help??

Can I use conditional formatting to format a range of cells? I know I can do the entire row, but I want the background color to only extend so far. Would I have to format each cell in the range individually with the same argument?