P(-3.8,1.6)
what is the area of
rhombus abcd?
p(-3.8,1.6)
b(7,-2)
de(-5-2)
c (1,-4)
enter your answer in the box. do not round at
any steps.
units?

One cell phone plan charges $20 per month plus $0.15 per minute used. a second cell phone plan charges $35 per month plus $0.10 per minute used. write and solve an equation to find the number of minutes you must talk to have the same cost for both calling plans.