A duck was given $9, a spider was given $36, a bee was given $27. Based off of this information, how much money would be given to a cat? How did arrive to that answer*

$18.

Formula : (No. of legs *5) - (no.of legs)/2

A duck has 2 feet. It gets 2*5 - (2/2) = 10 - 1 = $9

A spider has 8. It gets 8*5 - (8/2) = 40 -4 = $36

A bee has 6 feet. It gets 6*5 -(6/2) = 30 -3 = $27.

Thus, a cat with 4 legs would get 4*5 - (4/2) = 20 -2 =$18

Please mark me brainliest!

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this