Agroup of friends are going to the county fair. each ticket costs $7. write an equation to model the total cost of the group's tickets. what would be the cost for 13 tickets?
a. y=7x; $91
b. y= x 7; $20
c. y=x 7; $91
d. y=7x; $21

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.