Jim bought 32 apples from a sale promoting 8 for $5. How much did he save by not buying apples from a different sale promoting 4 for $3.

Is a positive integer raised to a negative power always positive

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?