Ratio of circumference to diameter example plz i need to now what it looks like.

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?

Alex's monthly take home pay is $2,500. what is the maximum bad debt payment he can maintain without being in credit overload?

Write each rational number in the form a/b, where a and b are integers. 1. 5 1/6 2. -12