Okay just find something the bottom and the top number can be divided by. Like the first one 9/18. They are bithe dividable by 9 so 9÷9=1. 18÷9=2. Now put one back over two. 1/2. So your answer is one half. This is to help you learn how to do it I hope it helps.
Answer:
-2
Step-by-step explanation:
4 × -0.5 = -2
Answer:
-9
Step-by-step explanation:
-1×9. that is how it is
Answer:


Step-by-step explanation:
By geometric mean property:

B is 90-42=48° since complementary angles add to 90°