Kayla measured a line to be 3.4 inches long. If the actual length of the line is 4.5 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?

What is negative 3/9 times negative 2/8 ?

What is (2.5a^8n)^3 · (0.4^7n)^3 can you plz simplify this quickly offering lots of points

Ahorse ran 800 meters in 40 seconds , 1200 meters in 60 seconds , and 480 meters in 24 seconds . is this a proportional relationship? if so , what is the constant proportionally? what does it represent ? write an equation to represent the distant d , in meter , that the horse runs is seconds