6(x+2)=3(2x+4)
6x+12=6x+12
the answer is infinie solutions because both sides are the same equation which will result in every number being the same on both sides
2*pi*10=62.83 is certainly your answer
x=9 because the triangle is equilateral which means every side is equal to 60. When you do the math you get 7x-3=60 which is 7x=63 and 63/7=9
Answer:
speed = distance / time
Jana's speed is
speed = (3.5 mi)/(1/3 h) = 3*3.5 mi/h = 10.5 mi/h