Find the x- and y-intercepts of the parabola y=6x2−16x+9. Enter each intercept as an ordered pair (x, y). Use a comma to separate the ordered pairs of multiple intercepts. If there are no solutions or no real solutions for an intercept enter ∅.

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie