Debra's penny bank is 2/3 full. after she removes 120 pennies, it is 1/2 full. how many pennies can debra's bank hold?

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.