Answer:
73 or 74
Step-by-step explanation:42/4=10.5 so 31.5 + 42 is 73.5 but round up or down
haha lol I was looking for the answer too, but I solved it! Here it is:
Answer:
The slope of line s is b/a. Rotate line s 90° clockwise about the origin to get line t. The labeled points on line s map to (0, a) and (b, 0) on line t. The slope of line t is -a/b. The slopes of the lines are opposite reciprocals because the product of the slopes is -1.
B, if they would breath in the air it would mess up there lungs
Answer:
8/4=2
Step-by-step explanation:
4x2=8