Which of the following will most likely have the highest lattice energy? licl -1, +1 charge nacl +1, -1 charge bai, +2, -2 charge licl +1, -1 charge mgo +2, -2 charge

Subtract 8 1/6 - 4 5/6 . simplify the answer and write as a mixed number.

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?