Faith uses a photocopier to make copies of a picture she drew. The original picture is in the shape of a right triangle with a height of 8 inches and a base of 10 inches. She sets the copier so the height of the copied triangle is 3 inches. Which is the base of the copied image? (i will report answers that include links for downloads and answers just for points)

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.