Aleprechaun places a magic penny under a girl's pillow. the next night there are 2 magic pennies under her pillow. each night the number of magic pennies doubles. how much money will the girl have after 16 nights?

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

Define multiplicative inverse. give an example of a number and its multiplicative inverse.