Find the perimeter of a semi-circle, where radius= 5.6mm (pls answer step by step)
a) 176mm
b) 28.8mm
c) 372mm
d) 3.72mm

What is the surface area of the sphere?

Pls what is the decimal equivalent of 5 over 9? select one: a. 0 point 5 bar over top of 5 b. 0 point 6 bar over top of 6 c. 0 point 8 bar over top of 8 d. 0 point 9 bar over top of 9

Ashley spent half of her lunch money on a turkey sandwich. then she spent two-thirds of the money she had left on a bottle of juice and the rest of the money on a cookie. if the cookie cost $.75, how much lunch money did ashley have to start with?