HELLP PLZ 1. Alejandra spent $28 for 8 gal of gas. Decide if each statement about the ratio relationship is true or false.

Choose each answer that is true.

A. The cost of gas is $3.50 per gallon.

B. Alejandra could buy 9 gal of gas for $30.

C. Alejandra has $45 and could fill her 13-gal tank.

D. Five gallons of gas would cost Alejandra $17.50.

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).

Arestaurant needs to buy thirty-seven new plates. if each box has five plates in it, how many boxes will they need to buy?

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]