Answer:
A
Step-by-step explanation:
9*13=117
12*16=192
We increased three meters to both the length and width of the garden.
Answer:

Step-by-step explanation:
Given




Required
Evaluate 
Expand

Further expand

Apply product rule of logarithm

Substitute values for log(7) and log(3)


7 and 9/10
Working;
10 goes into 70 7 times. The remainder is 9.