Ethan solves this equation, as shown. Step 1: -2(x+4)= -16 -2(x+4) -16 Step 2 -2 - 2 Step 3: X+4= -8 Step 4: X+4-4 = -8-4 Step 5: x= -12 In which step, if any, did Ethan first make a mistake? A) In Step 2. Ethan should have divided by 2. B) In Step 3. Ethan's quotient should be 8. In Step 4. Ethan should have added 4 to both sides D) Ethan did not make a mistake

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )