Aused electronics store pays $40 for each cell phone, spends $25 refurbishing the phone, and sells the refurbished phone to a customer for $100.

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3