Question 1199119
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The other tutor solves the problem by finding the constant of proportionality to find a formula relating the radius of the pizza and its cost.  That would be a good path to the solution if you were going to use the formula multiple times to find the costs of several pizzas of different sizes.<br>
But that is more work than necessary if, as in this case, you only need to find the cost of one other pizza.<br>
The cost varies directly as the square of the radius of the pizza, so you can find the cost of the larger pizza by multiplying the cost of the small pizza by the ratio of the squares of the two radii.<br>
{{{180((11/6)^2)=180(121/36)=(180/36)(121)=5(121)=605}}}<br>
ANSWER: 605<br>