John took a 5 1/2 mile walk to his friend's house. He left at 11 a. M. And arrived at his friend's house at 12:45 p. m What was his average speed of walking in miles per hour?

Mindy bought 5/8 pound of almonds and a 3/4 pound of walnuts.which pair of fraction cannot be used to find how many pounds of nuts she bought in all.

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Use circumcenter theorem to solve for the given values