Let's say a stands for apples and p for pears
We know that

And

In order to know what the cost of an "a" is we have to put the value of the p in the second equation, which means



And

The price of per kilo for apples is 1.80
Answer:
{y,x} = {-2,4}
Step-by-step explanation:
it is
Answer:
6.703 * 10^8 km
Step-by-step explanation:
<u>Step 1: Subtract</u>
778,500,000 - 108,200,000
<em>670,300,000 km</em>
<em />
<u>Step 2: Convert into scientific notation</u>
670,300,000
<em>6.703 * 10^8</em>
<em />
Answer: 6.703 * 10^8 km