Naresh walked 2 km 35 m in the morning and 1 km 7 m in the evening. how much distance did he walk in all?

What is 32+4 x (16 x 1/2) -2 show your work}

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10