Mark's brother is 5 years older than mark. their combined ages add up to 23. how old is mark?

Mark would be 9

Mark is 9.                                                                      

9+5 =14

14+9=23

after 1 year: 221 deer

step-by-step explanation:

30% of 170 is 51. 170+51=221

i would be 2,000 just get the square root of 50 which is 2500 and the divid 4/5 and last thing multiply the answer you get for that by the square root of 50

step-by-step explanation: