What is the best approximation for the perimeter of a semicircle with a diameter of 12 cm?

use 3.14 to approximate pi.

18.84 cm

30.84 cm

61.68 cm

75.36 cm

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

Drag the tiles to the boxes to form correct pairs. not all tiles will be used. match each set of vertices with the type of quadrilateral they form

Which graph represents the parent function of y=(x+2)(x-2)