Let ping pong ball be called PPB To solve this problem you must know the following unit change 1km = 1000m 1m = 100cm Then, applying the change of units, we have that the length in kilometers is: 6.02x10 ^ 23PPB x 4.0cm / 1PPB x 1m / 100cm x 1km / 1000m = 2.41 x 10 ^ 19 km
The formula is A=p (1+rt) A future value 1249.22 P present value ? R interest rate 0.14 T time 1 year We need to solve for p P=A÷(1+rt) P=1,249.22÷(1+0.14×1) P=1,095.81 round your answer P=1096