Which description best describes the solution to the following system of equations? (1 point) y = −2x + 8 y = −x + 5 Line y = −2x + 8 intersects the origin. Lines y = −2x + 8 and y = −x + 5 intersect the x-axis. Lines y = −2x + 8 and y = −x + 5 intersect the y-axis. Line y = −2x + 8 intersects the line y = −x + 5.

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).

Kevin is an insurance salesman. when he sells a policy, he makes 20 percent of the policy premium (p) up front; then each year the policy is active, he receives 15 percent of the original premium. which equation could be used to figure his total commission on a policy that has been active for five years? c=0.80p c=0.20p + 0.15p c=0.35p + 4(0.15) c=0.95p

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia