The table shows the cost in dollars, y, for renting a truck and the discount for using personal insurance for x number of days. Which function shows the final cost in dollars, y, for renting four trucks using personal insurance for x number of days?

y = 27.50x + 12.50
y = 42.50x + 12.50
y = 110x + 50
y = 170x + 50

In the figure below, segment ac is congruent to segment ab: which statement is used to prove that angle abd is congruent to angle acd? a.)triangle acd is similar to triangle abd. b.)triangle acd is congruent to triangle abd. c.)segment a.d. is congruent to segment ac. d.)segment a.d. is congruent to segment dc.