It’s 2/25 because 24 x 1/3/100 and you simplify the complex fraction so it’s 24 x 1/300 now reduce the numbers with the greatest common factor 12 so now it’s 2x1/25 then calculate the product 2/25
On 3 you subract 36-3 on 4 make the fraction a decimal by dividing the numerator by the denominator and then subtract 12 by the decimal you get and I'm pretty sure you should get both your answers.
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1. b is midpoint of 1. given
AC
2. AB = BC 2. if midpoint, then two
congruent lines
3. AB = EF 3. given
4. BC = EF 4. transitive property
14(3+12)/4 Im pretty sure