. Pia drew a circle with a circumference of C and a diameter of 14 in. Pia knows that C d = 
, and she wrote
the following equation to represent the value of
π .
 =
14
C
(a) There is an error in Pia’s equation. Write an equation to correctly represent the value of
π . Show
your work.
(b) Write an equation and find the circumference of the circle

The probability that you roll a two on a six-sided die is 1 6 16 . if you roll the die 60 times, how many twos can you expect to roll

Talia took the bus from her home to the bank and then walked back to her home along the same route. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. to determine the time, x, that it took talia to walk home, she used the equation 40(0.9 – x) = 5x. the time of trip 2 is hours. the distance of trip 1 is km.

Point q is equidistant from the sides of ∠tsr. find m∠rst.