If abcd is an isosceles trapezoid, what is the value of x

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

Which expression is rational? 6. , square root two, square root 14, square root 49

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?