Pls answer for 20 points i suck at this and it's almost due

If the measure of xyz is 81 what is the measure of yz

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Alana has 12.5 cups of flour with which she is baking four loaves of raisin bread and one large pretzel. the pretzel requires 2.5 cups of flour to make. how much flour is in each loaf of raisin bread? explain the steps to follow to get the answer.