Liz walks 5/6 of a mile to school everyday. her friend ann walk 3/4 of a mile how much longer is liz's walk than ann ?

What is the greater volume 72 quarts or 23 gallons

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.