Solve for x. Image is below.

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

Agroup of three friends order a combo meal which includes two slices of pizza and a drink each drink is priced at $2.50 the combined total of $31.50 how much is the cost of a slice of pizza