Step-by-step explanation: Interest formula - I = P × R × T I = 3,280 × 0.3% × 9 What I basically did there wws multiply the amount of money, the simple interest, and the time. Turn 0.3% into a decimal by dividing by a 100 which should give you 0.003
I = 3,280 × 0.003 × 9
Put that into a calculator, you get $88.56
Now, that's just the interest amount. Now you add it back to 3,280 to get the *total* amount.
Side of the room = x. From the right triangle, where sides of the square are legs of the right triangle, and the diagonal of the square is a hypotenuse of the right triangle. x²+x²=6² 2x²=36 x²=18 x=√18 =√(2*9)=3√2≈4.2m
