Evaluate the expression if x= -8, y= 7, z= -11 x - z - y

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan

Eileen purchased 3.4 pounds of apples at the total cost of $19.72. if she purchases 6.2 pounds of apples at this store, how much would it cost?

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?