The denominator of the second fraction can be factored as (a-2)(2a-7), then it becomes doable. You cancel the (2a-7) factors, and are left with:

Do note that you have erased the fact that a≠0 and a≠7/2, so you should always mention that.
Answer:
3/25
Step-by-step explanation:
Simplify the fraction by using common factors of numerator and denominator. Now, 12% can be written as 12/100.
Red is 20 and you spin it 50 times so 2/5 chance is red so that makes 3/5 chance not red
Answer:
the answer will be table -1
Step-by-step explanation:
Answer:
so good
Step-by-step explanation:
so good