The summation symbol means we use the variable i in the equation from the given range. In this case, we are given with the equation 3 i - 15 and i ranges from 2 to 7. The summation using simply the calculator is equal to -9. The answer to this problem is -9.
B is your answer because 20 - -10 is 10 brainliest please
The answer is 20.
5*10-5*6=50-30=20
Answer:
Square Root of 384
Step-by-step explanation:
