Answer:
13:12, 13 to 12, or 13/12
Step-by-step explanation:
520:480
Divide both numbers by GCF (40)
13:12
Since you have two numbers that have a (x) at the ends of them, you add those first then add seven which will end up being 9x+7
You would take 1818÷33=55.09
55.09 is how many toothpicks it took for each step made
Then you would take 55.09×55=3029.95
You can make sure this is correct by taking 55.09×33=1817.97 which would actually be 1818 because you had to round it up
Answer:
it would be c when fully simplified.