15% of 60 = 9, so she sent 9 messages to her best friend.
Hope that helps.
Step-by-step explanation:
x+z = 1, z = 0
x + 0=1
x = 1
3x+3z= 3
3(1) + 3(0) = 3
3 = 3
Answer:
(3,0)
Step-by-step explanation:
Area = A
Side length = L = 29 cm
number of sides = n = 9
Apothen = a = 40 cm
A = nLa / 2 = 9*29cm*40cm / 2 = 5,220 cm^2
Answer: 5,220 cm^2