Sven investigates the amount of damage to the head gaskets on the trucks in his fleet and find that the damage index depends on the ambient temperature. He develops the equation y = -2/3x + 14 to model the relationship. What does 14 mean?

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

State if the two triangles are congruent. if they are, state how you know?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?