Which expression is equivalent to the following complex fraction?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

Type the correct answer in each box. use numerals instead of words. if necessary, use / fir the fraction bar(s). the graph represents the piecewise function: h

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