Two office buildings are 100 ft apart, as shown. From the edge to the roof of the shorter building, the angle of the elevation to the top of the taller building is 28 degrees and the depression to the bottom is 42 degrees. How y’all is each building? Round to the nearest foot.

a reflection across the x axis and a 90 degree rotation left and right.

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