Answer:
Take deep breaths and focus, don't be afraid to ask for help.
Good luck!
Answer:
y = 5x
Step-by-step explanation:
y = 5x where x is the number of questions answered correctly
The number of ways of choosing 4 digits from 10 digits without replacement ( order is important) is
. This is the number of all possible permutations of choosing 4 from 10. The first 4 numbers of your phone number is a unique 4 digit number(4 different digits). The required probability is

Answer:
n = 145
Step-by-step explanation:
-58 ÷ -0.4 = 145
n = 145
Answer:
(5, 20)
Step-by-step explanation: