If y varies directly with x and y =10 and x=4 write the direct linear variation equation . a-y=10x b-y=4x c-y=5/2x d-y=2/5x

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

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 not a subset of {1,2,3}?