Over the course of a year, a tractor trailer commutes 160,000 miles across America. If the trucker changes his oil every 10,000 miles, and he starts the year with a fresh oil
change, how many times will he change the oil in a year?

"you know, playing tennis is healthier than watching a tennis match on television," katya remarked to her couch potato brother. in this sentence, healthier is a/an a. superlative. b. comparative. c. positive form. d. adverb.

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

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?