You want the boot menu on this Linux system to wait until you make a selection before it boots. You need to modify the GRUB_TIMEOUT parameter to make this happen. Once you have changed this parameter, reboot the operating system to see this change in the behavior of the GRUB menu. After rebooting the operating system, login with the user root and password 1worm4b8.
Your task in the lab is to do the following:
1- Modify the GRUB_TIMEOUT parameter
2- Reboot the operating system to see the changes made to the wait time from the GRUB menu.
3- Login with the username root and password 1worm4b8

Write a program that will compute the volume of ice cream served in a cone. as you can see in the diagram below, the ice cream is served as a hemisphere of frozen deliciousness on top of a cone, which is also packed with frozen deliciousness. thus, the total volume of ice cream sold is the volume of the hemisphere plus the volume of the cone. the example shows an ice cream cone in which the hemisphere and cone have a radius of 10 inches and the cone has a height of 15 inches. your program must instead prompt for these two values, which are taken from the keyboard as integers: • the hemisphere/cone radius in inches, and