Does anyone know what 97% of 345m is ?

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

What is the ratio of the length of an object in yards to the length of the same object in miles?

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.