The logarithm of a product is equal to the sum of logarithms:

Drop the exponents:

The logarithm of a number is equal to 1 if the base of the logarithm is the same as the number itself:

If he started at 0 where does he end up?
0 + 7 yards - 4 yards + 12 yards = 15 yards
He ends up with 15 yards
Integers are whole numbers.
3z - 12 = 63
+ 12 +12
3z = 75
z = 25
x + 63 = 180
- 63 - 63
x = 117°
Given is :
The area of the rectangular patio is = 130 square feet
Let the width of the patio be = x feet
As length is 3 feet more than the width, so the length is = x+3 feet
Now area of rectangle is = length * width






This gives either x-10=0 or x+13=0
x-10=0 ; x=10
x+13=0 ; x=-13 (neglect this negative value)
So, the width of the patio is = 10 feet
Length = 10+3 = 13 feet