5. CHESS The game of chess is played on a square shaped board. If the length of one edge of the board is 3m*n, what is the area of the board? (Hint: How do you find area of a square?)
i need help

Use the multiplier method to incrases £258 by 43%

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

Need showing work for this problem 56.25 ×25.80