Bill is making a poster with an area of 30 square inches. jeff is making a poster with an area of 30 square centimeters. phil thinks both the posters will be the same size. is he correct?

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

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One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?