In the standard (x, y) coordinate plane, the line that passes through (1,-7)and (-8,5)is perpendicular to the line that passes through (3,6) and (-1,b)what is the value of b?

When will division i requirements change? requirements change every four years requirements change every year august 2016 requirements change every other year

Compared with the cost of tuition, fees, and books for a traditional college course, the cost of a clep exam is:

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.