26x3=78
78-x=72
x=6
She needs to buy at least 6 more to have enough for 26 students
By the binomial theorem,
where
Then the coefficients of the 
terms in the expansion are, in order from 
to 
,
Answer:
i dont know
Step-by-step explanation:
Answer:
0.41 cm
Step-by-step explanation:
The scale on the map is 1 in 86 mi.
This means that, 1 cm on the map represents 86 miles in real life, or on earth.
Then we're told that in real life, a distance is 35 miles, and how far they are on the map.
If 1 cm equals 86 miles, then we can say that x cm equals 35 miles
1 cm ----> 86
x cm ----> 35
x * 86 = 35 * 1
x = 35 / 86
x = 0.41 cm
Therefore, they must be 0.41 cm farther or closer apart on the map scale.
45x50= 2,250 is the answer
