Joey has a beach ball with a radius of 20 cm. what volume of air will it hold when fully inflated? [round to nearest tenth.] a) 83.8 cm3 b) 251.4 cm3 c) 1676.2 cm3 d) 33,493.3 cm3

Geometry. i need step by step explanation on how to do each problem.

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

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