Chiquita and the rhonda are each building a snowman. rhonda tells chiquita that she is making each of her 3 balls of snow 20% smaller than the one below it. rhonda starts by making the base ball with a diameter of 20 inches. if she reduces the diameter by 20% each time she makes a new ball, what is the diameter of the third ball she makes (the ball for the snowman's head)? express your answer as a decimal to the nearest tenth.

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?