The number of miles per gallon of gasoline that a vehicle average varies inversely as the average speed the car travels. A vehicle gets 16 miles per gallon at 53 mph. How many miles per gallon will it get at 62 mph?

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

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.

Which number line correctly shows 0.8 + 0.3?