He gave away 9 (20 x (3/7) =9) so 21-9=12
<span>37x^3y^6 and x^6y^2
</span>greatest common factor: x^3y^2
B 1 since you would round 1.9 to 2 and 0.7 to 1
Oh this question is kinda tricky. At first glance it’s 1 : 1.5 but notice the units. The model car is 10 inches long and the actual car is 15 feet long.
I think you know where to go from there, but 15 feet * 12 inches = 180 inches.
10 : 180 simplifies to 1 : 18 inches