Excel 2007 : Could use someone smart with forumals x.x

Hey guys I'm doing some project on Excel for a class. When it comes to entering and creating formulas, I'm borderline handicapped. Does anyone know what to make of this?

Enter a formula into cell B7 that calculates the gravity felt by the astronaut on Mercury wearing the space suit. The formula is the percentage (in row 5) times the sum of the weight of the astronaut (in column A) and the weight of the space suit (in cell A2). You should use absolute formulas for this.

Haaalp. Also, much thanks in advance.

EDIT: Oops sorry pike.