Three friends each have some ribbon,carol has 42 inches of ribbon, tina has 2.5 feet of ribbon, baxter has 1.5 yards of ribbon. express the total length of ribbon the three friends have in inches,feet and yards

126 inches

Step-by-step explanation:

To express the total length of ribbon convert the three lengths into the same measurement of inches.

Carol has 42 inches.

Tina has 2.5 feet which is equal to 24+6=30 inches.

Baxter has 1.5 yards which is equal to 36+18 =54 inches.

This means in total there is 42 + 30 + 54= 126 inches

(x+9)(3x+27)

Step-by-step explanation:

3x^2+54x+243 (243×3=729, Product=729, Sum=54) [27+27=54, 27×27=729]

3x^2+27x+27x+243

3x(x+9)+27(x+9)

=(x+9)(3x+27)