0-9 = 10 numbers
1st digit can be 1 0f 10
2nd digit can be 1 of 9
3rd digit can be 1 of 8
4th digit can be 1 of 7
10 * 9 *8*7 = 5040 different combinations
First, we can convert feet to inches
1 foot=12 inches
7 feet=84 inches
Next, we find out inches per hour
84 inches/27 1/2 hours
----------- --------------
27 1/2 27 1/2
=3.054 inches/hour
Answer:
y = -3/4x + 3
Step-by-step explanation:
6 = -3/4(-4) + b
3 = b