A plane flies 1890 km in 3.5 hours. How far will the plane fly in 4.2 hours if it maintains the same air speed?

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared