31.4/3.14=10
10/2=5
5*5*3.14= 78.5 cm square
Answer: 5
Explication: Do PEMDAS first solve the parenthesis which is 6x19= 114 then add the 25 which equals 139. Now slice the exponent 6^2=36 then multiply by 4 which equals 144. Subtract 144-139 and you get 5
<h2>Answer: 4

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Step-by-step explanation:
Mark as brainlest plz?
It’s answer C. You multiply 8 & 13, which will give you 104. Then, multiply 8 & 2y, which will also give you 16y.