Answer:
x = 13/12
Step-by-step explanation:
explain on image
Tenths is the digit in the tenths place. Like 0.1 being 1 tenth.

so 4/5 of A is really 80% of A then.
since a whole A is 100% of A, 100% - 80% = 20%, A is being reduced by 20%, namely 1/5.
The like terms are 7w and -w, so we can collect them to get:
6w+3
Hope this helps!! :)
Answer:
the area after 6 years is 3,473 km^2
Step-by-step explanation:
The computation of the area after 6 years is as follows:
= Area × (1 - decreased percentage)^number of years
= 4,800 km^2 × (1 - 5.25%)^6
= 4,800 km^2 × 0.9475^6
= 3,473 km^2
Hence, the area after 6 years is 3,473 km^2