find the height of a room 15m long and 10m wide, the area of whose floor and ceiling together is equal to area of 4 walls.

answer: the equation matches the regression

step-by-step explanation:

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

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for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis:

236 cm 16 time 12 = 192

6 times 7 = 42

192+42