Use proportions and use letters for unknown measurements
Answer:
36
Step-by-step explanation:
4*6=24
3*4=12
24+12=36
That would be around $200. Because you would take 40 devide by .2 and get 200.
When you do the inverse operation which in this case would be subtraction you do 54-17 and then you do 17 minus 17 which leaves you with the variable 54-17=34 so k=34
