Quick, someone pls with 1. let △abc be a right triangle with m∠c = 90°. given tan ∠b = 0.25, find tan ∠a. 2. let △abc be a right triangle with m∠c = 90°. given tan ∠b = 0.125, find tan ∠a. 3. let △abc be a right triangle with m∠c = 90°. given tan ∠a = 2.5, find tan ∠b.

(x + 5)(x - 7)

First, apply the FOIL method: (a + b)(c + d) = ac + ad + bc + bd. / Your problem should look like:  - 7x + 5x - 35
Second, gather like terms. / Your problem should look like:  + (-7x + 5x) - 35
Third, simplify. / Your problem should look like:  - 2x - 35

  - 2x - 35