Please help me I will give out the brain and extra points please help me

3. A miniature drum is shown. The top of the drum has a diameter of 16 millimeters. What is the approximate measurement of the area of the top of the disc in square millimeters (mm2)? Use 3.14 to approximate π, do not round your answer. Show your work and don’t forget to add the units to your answer.

You can run 4 laps in 10 minutes your friend can run 6 laps in 15 minutes. are these rates proportional

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

Can someone me and do the problem plz so i can understand it more better