There are 4 lunch choices in a school cafeteria. the percentage of students that chose salad is 15%.if 300 students ate lunch, what is the total number of students that chose salad.

Which of the following is the correct ratio for converting kilograms to grams

Solutions for 2x+7 less than or equal to 3x-5

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.