At the start of a year, the MLS company's stock initially sold for $40 per share. At the end of the quarter, the company's stock was selling for $50 per share. What was the stock price's rate of return (percent increase)?

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x