You can to 7+2 or 6+3 or 5+4.
Answer: C
Step-by-step explanation: In bracket we subtract 8,5% which is 0.085 from whole amount which is 1. Then the obtained result, we raised to the power of x - wich respresent numbers of years
Answer:

Step-by-step explanation:
we know that
To find the the rate per studen, we need to divide the total amout spent by the number of students
so

The probability is just 1/2 that the disc will result with the white side landing up.
There are two sides to the disc. If they are equally likely to happen, then the chance of either side is 1/2. It does not matter which number the flip is.
Answer :
D - (x+10)(x-10)
Solution:
x^2 -100
= x^2 - 10^2
= (x+10)(x-10) { a^2 -b^2 = (a+b)(a-b)