If r(x) = 3x - 1 and s(x) = 2x + 1, which expression is equivalent to
3(6) – 1
2(6)+1
2671
36-1
26+1
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Factor a^3 - 3 + 3a^2 - a. a) (a - 1)(a + 1)(a + 3) b) (a^2 + 1)(a - 3) c) (a^2 - 3)(a + 1)

Roger and natalie travel in similar cars. roger's car drives the two miles to school in 7.5 minutes. natalie drives the same distance in the opposite direction but in only 6.5 minutes. what is true of their velocities?

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.