Write the series using sigma notation: 20-40+80-160+320
2/3 + 3/4 + 4/5 + 5/6 + 7/8 + 8/9
#/# = Fraction

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

Factor the polynomial expression x6 – x3 – 20

The equation line of cd is y=-2x-2. write an equation of a line parallels to line cd in slope-intercept form that contains point (4,5)