the expression 2(x²-4x-21) - (x+77) and (x-7) (x+k) are equivalent. what must be the value of k A.-148 B.-71 c.83 D.160​

The larges lakes in the world are found in: asia europe north america south america

Which of the following insects is a decomposer? a. mosquito. b. caterpillar. c. beetle. d. none of the above.

Why did the belgian parliament pass laws to decentralize its government? a. to increase trade with neighboring luxembourg b. to decrease the political power enjoyed by the flemish c. to enable belgium to join the european union d. to reduce tensions between belgium's two main ethnic groups