Charmaine purchased a prepaid phone card for $20.00. Calls cost 25 cents a minute using this card. The credit, C (in dollars), left on the card after it is used for
x minutes of calls is given by the following function.
C(x) = 20.00 -0.25x
How much credit is left on the card after Charmaine uses it for 40 minutes of calls?

the correct answer is b) histograms can be used to exhibit the shape of distributions. this is because histograms count the frequency of each possible answer, so one is able to see which results are more common and which are less common.

huh? im pretty sure it is in 199

step-by-step explanation:

hello :

70y^8 + 30y^6 = 2 ( 35 y^8 + 15y^6)

the lenght is : 35 y^8

the width is : 15y^6