Please Help 20% of your family likes marshmallows melted on top of the sweet potato casserole. If you have 18 people in your family, which proportion could be used to find the number of people who like marshmallows melted on top of the sweet potato casserole? A : 20/100 = 18/ x

B : 18/20 = x/100

C : x/18 = 20/100

D : 20/x = 18/100

What term best describes a line ans a point that lie in the same plane

What is always true about a positive integer raised to a negative odd power?

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.