1. A 90 g sample of plutonium-238 has a half-life of 88 years. How long will it take for this sample 40 g? [5]

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²

An isosceles trapezoid was broken into a rectangle and two triangles. what are the base and height of one of the triangles?