Answer:
12=(10, 54)+(42, 48)-12feet
Step-by-step explanation:
math teacher
120 divided by 8= 15
15 students per year is the answer.
Hm, it seems like his answer is off. The image is what I got.
Glass and Titanium. Glass is because (10,40) (y over x) is 4 and Titanium is because (10,60) is 6 cork and lead are not since when dividing y over x it doesn't equal 2.