Answer:
T^2 = 4π^2 * L / g^2
L = T^2 * g^2 / 4*PI^2
Step-by-step explanation:
x =69 y= 420
69⁹99999999999999999999999999999999999
She paid $50 to activate one time and pays $20/ month
20.00x3=60.00
60.00+50.00=110.00