Rule: (a/b)/(c/d)=(a/b)*(d/c)
(5/14)/(3/4)
(5/14)(4/3)
(5*4)/(14*3)
20/42
10/21
Since the last digit is already decided, you only have to find the possible ways for a 6 digit phone number. For each individual digit, you have a possibility of 10. Since there are 10 numbers, the answer is
Answer:
Step-by-step explanation:
factor each term into powers of primes
75 = 3×5²
20 = 2²×5
Greatest common factor = 5
75+20 = 5(15+4)
Answer:
109r6
Step-by-step explanationi got it