K & R Builders build three models of houses, M₁, M₂, and M3, in three subdivisions I, II, and III located in three different areas of a city. The prices of the houses (in thousands of dollars) are given in matrix A. I A = II B = K & R Builders has decided to raise the price of each house by 4% next year. Write a matrix B giving the new prices of the houses. 326.4 418.2 III 673.2 M₁ M₂ M3 320 340 380 410 430 450 660 680 700 346.8 428.6 693.6 ↓↑ 387.6 459 714

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