Answer:
to get the arithmetic means between 35 and 105 you must add the two and divide it by 2 so 35 + 105 equals to 140 then you divide it by 2 to get 70
1 and 8
Step-by-step explanation:
Extierior think of it as interior is the inside they both start with in and then extierior is the outside
n(A)+n(B)-49/400=n(AUB)
n(B)=1-7/20+49/400
n(B)=(400+49-140)/400
n(B)=309/400
a
because students have good eyesight while others dont.
