A doll that is 12 inches tall is a scale model of an actual person who is 64 inches tall. What is the scale?

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.