ABCD is a rhombus. Find the measure of angle BCD

Find the cosine function that is represented in the graph.

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?

Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4