Answer:
12 units
Step-by-step explanation:
Because the two triangles are similar:

Hope this helps!
Answer:
2/3
Step-by-step explanation:
If we have 'x' students who like math and 'y' students that like science, we can formulate that:
Half of x likes math and science, and also one third of y likes math and science, so:
(1/2) * x = (1/3) * y
x / y = (1/3) / (1/2)
x / y = (1/3) * 2 = 2/3
So the ratio of the number of students who like math to the number of students who like science is 2/3
Mechanical Advantage = Force by Hammer / Force by Nail = 160/40 = 4
Answer: look at the picture
Step-by-step explanation: Hope this help :D