Answer:
9/10
Step-by-step explanation:
first you find the lowest common denominator. 1/2 becomes 5/10, 2/5 becomes 4/10. 5/10+4/10=9/10
Answer:

Step by step explanation:


Answer:
2.5
Step-by-step explanation:
because you can tell by the numbers and how close they are then u have to divide
Answer:
a hope help you stay happy and safe
Answer:
That is an acute angle.
Step-by-step explanation:
None of the angles exceed 95 degrees.