The radius of the circle shown below is 8 centimeters. what is the approximate length of ?
a. 16.1 b. 50.3 c. 8.0 d. 64.2

(i cant upload the image, but its a circle with 1/4 of the lined circle, and its xy= 115)
i need it as soon as possible, you!

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?

If 25% of y is 30, what is 60% of y?

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.