The answer is 10w^4. When you multiply the numbers, you add the powers together.
104 is the answer, How did I get it? First, I put 65% into a decimal by moving two places to the left which then became .65 and multiplied it to 160 and got 104.
For a system of two variables and two equations, each equation will be a linear graph, and where the lines intersect is the solution as an ordered pair (x,y). If the lines don’t intersect (they’re parallel) so there is no unique solution.
After 2 years you have 45 fishes!
20x1.5 =30 after 1st year
30x1.5=45 after 2nd year
