Abox of pencils costs $10.the total cost (c) as a function of the number of boxes (b) is expressed as c = f(b) = 10b. what is the domain of this function?

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. solve this quadratic equation using the quadratic formula. 2x2 - 2x=1 need asap

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25

Susie wants to take her friend out for lunch. she wants to spend $9.75 each person. how much will she spend in all.