Three of eight rows of a rectangle model or shaded five of the seven columns are shaded what product can be found using the model

Cameron made 1 loaf of bread. his family ate 4/6 of the loaf of bread. how much of the loaf of bread remains? /

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?

Which of the following is true for the relation f(x)=2x^2+1