Which pattern of numbers can be produced by the formula an=3n-4

The first hexagon is dilated to form the second hexagon select the answers from the drop box menus to correctly complete the statement

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

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.