Examine the system of equations. y = 32x − 6, y = −92x + 21 Use substitution to solve the system of equations. What is the value of y? y =

What is the percent of increase for a population that changed from 438,000 to 561,000

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle