Alice takes 1/3 of the pennies from the jar. then brett takes 1/3 of the remaining pennies from the jar. finally, carla takes 1/3 of the remaining pennies from the jar, leaving 40 pennies in the jar. how many pennies were in the door at the start?

135 pennies

Step-by-step explanation:

 x= pennies in the door at the start

x-1/3x-1/3(x-1/3x)-1/3(x-1/3x-1/3(x-1/3x))=40

x = 135

Proof: 135-45-20 =40

135-45=90

90=30=60

60-20=40

50*10 is greater

step-by-step explanation:

if you add the zero from 10 to 50, it will give you a bigger number.