Which exponential function goes through the points (1, 16) and (4, 128)?
f(x) = 4(4)^x
f(x) = 8(2)^x
f(x) = 8(2)^−x
f(x) = 4(4)^−x

Solve the inequality, then identify the graph of the solution. 2x – 1 > x + 2

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable