Answer:
11a+5
Step-by-step explanation:
-5a-6a-3+8
=11a+5
Answer:
53/100
Step-by-step explanation:
Answer:
Step-by-step explanation: 100 divided by 20 is 5 therefore, each question is worth 5%. take how many questions she got right and multiply by 5. then determine if her score is less than or greater then 90%.
Your good its 80 one way you can always tell if its a triangle is if all the angles add up to 180
