Pizza has 12 slices only finished 75% how many slices are left

Hello i need some with trigonometric substitutions. [tex]\int\limits^a_b {x} \, dx[/tex]

In what form is the following linear equation written y=9x+2

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°