1. In a week there are 7 days. So your andwer would be 21/10. The decimal is 2.1.
Answer:
19.2 centimeters
Step-by-step explanation:
Tia cut a 4 meter and 8 centimeter wire, converting this measure to centimeters

and she cut it into 10 equal pieces, thus each piece measures:
.
Martha has a wire of 540 centimeter wich she cutted into 9 equal pieces, so each piece measures:

The difference between the two wires is:

"<span>Arc cd 1\4 of the circumstance of a circle. What is the radian measure of the central angle." Better: 'The arc CD is 1/4 the circumference of a circle. What is the radian measure of the central angle?'
That would be 1/4 of 2pi, or pi/2 (answer)</span>