Parallelogram abcd is a rectangle
a (4,3)
b(-2,1)
d(5,0)
6 8
1
c(-1,-2)
what are the slopes of the sides that make this quadrilateral a rectangle?
-2 and 12
-12 and 2
-13 and 3
-3 and 13

Asalesperson set a goal to earn $2,500 in august. she receives a base salary of $1,000 per month as well as a 20% commission for all sales in that month. how many dollars of merchandise will she have to sell to meet her goal?