Which of these expressions are equivalent to 2^2/2^8 select two that apply

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

My math teacher told my class to "steal" a 6th grade fraction word problem from the internet, word problems? : -p requirements: only a 1 step word problem. needs to be complex.

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3