Which Biconditional is not a good definition A. three points are colinear if and only if they line on the same line
B. An angle is obtuse if and only if it measures is greater than zero
C. An angle straight if and only if it measure is 180
D. Two line segments are congruent if and only if they are the same length.

Someone answer asap for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

If a line is defined by the equation y = 5x + 2, what is the slope?

Which of the functions below could have created this graph?