Let C represents the circumference and d represent diameter since pi is about 3.14 which formula is reasonable? D/3.14 = C

Or

C/D = 3.14

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.