1. 7x - 28 = 84
2. 7x = 112
3. x = 16
The number of ways 4 digit numbers can be forms using the digits 0 to 9 with no number repeated is given by

The probability that one of the numbers is 9876 is given by
Answer:
4/10=1
Step-by-step explanation:
Divide both fractions by 10 and you get 4/10=1
Answer:
a) -0.5 • 1.7 - 0.5 • 1.7
Step-by-step explanation:
I knew this answer. It is in distributive property.