*i'll give brainliest to whoever answers this correctly*

this is trigonometry, cosine law

Select the sequences that are geometric.

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?

Which statement justifies why angle ebc measures 90?