Are u able to take a picture of the whole question?
There are 10 seniors in the class, from which 4 should be chosen by the teacher. The order of the chosen students does not matter. This means that we speak of combinations. THe equation for calculating the number of possible combinations is:
C=N!/R!(N-R), where N is the total number of objects and R is the number of objects we select from the N
In our case, N=10, R=4.
C= 10!/4!*6!=10*9*8*7*6!/6!*4*3*2*1=<span>10*9*8*7/24=5040/24=210
There are 210 different ways for the teacher to choose 4 seniors in no particular order.</span>
..........................................................................
Nadia saved 10% of $24.90.
10% x 24.9 = 2.49
answer: $2.49
The slope of this line can be described as D. zero slope because there is no upward movement, so there is no slope, so it is zero.
Answer: D. zero slope
