For 38 the average change is 30 ft per minute. just do 90 divided by 3. for 50, just add $4.50 to $65.50 five times and you get $90 after the 5 days
Well when u divide 246÷3=82 but since i have to use rectangular models.........
7, 8, 9, 10, 11, 12, 13, 14
3.7x-18=-4.3x-34
+34. +34
3.7x+16=-4.3x
-3.7x. -3.7x
16=-8x
/-8. /-8
-2=x