What is another word for "permutation?"

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.