A rose garden is formed by joining a rectangle and a semicircle, as shown below. The rectangle is 34 ft long and 24 ft wide. If the gardener wants to build a fence around the garden, how many feet of fence are required? (Use the value 3.14 for y, and do not round your answer. Be sure to include the correct
unit in your answer.)

Find the perimeter of the figure shown above. a. 40 cm c. 52 cm b. 60 cm d. 75 cm select the best answer from the choices provided

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

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.