Which of the following are congruence transformation? check all that apply
a- rotation
b- strechting
c- shrinking
d- reflecting
e-translating

The cost varies directly with the number of tickets purchased. it costs $145 for 10 people to attend a concert. a. what is the constant of proportionality (k)? b. write the direct variation equation. c. home much does it cost for 8 people? d. graph this situation. be sure to label each axis and give the graph a title.