Write and solve a system of equations made up of Aiden's and Natalie's lines of best fit that they
can use to find the catapult arm length that they could both use to launch their tennis balls the
same distance. What is the solution to the system?
Type the correct answer in the box. Round each number to the nearest tenth.

What is the value of the expression below? (81^2)^1/8

When lulu enlarged her drawing of a rabbit, the enlarged picture appeared to be distorted. which statement about the transformation applied to her drawing is true?

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.