Brett made a scale drawing of a rectangular room in his house. The actual length of the room is 12 ft. The scale used to make the drawing was 3 in = 1ft. What is the length, in inches, of the room in the drawing?

the equivalent expression are always the hardest ones but you look at the gcf also

step-by-step explanation:

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x