<span>Before we start the math you must know that he is trying to beat his record so we can't do 72-10 lets do 73 instead because that is the least he can eat to beat his record so first do 73-10 that is 63 now he only has 9 min left to eat 63 more hot dogs just do 63/9 and that gets you 7 he must eat at least 7 hot dogs every min for 9 min to beat his record.</span>
take the triangle away from the square you will get 9 for the square 3x3 you get the 3 from 7 because 7-3=4 the 4 if for the triangle 4x3=12 divided by 2 bc its a triangle u get 6 6+9=15
