Alandscaping company placed two orders with a nursery. the fist order was for 13 bushes and four trees, and totaled $487. the second order was for six bushes and two trees, and totaled $232. the bills do not list the per-item price. what were the coast of one bush and tree?

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).

Which is the graph of the function y=2(4)^x

Is the square root of 4 plus the square root of 16 rational?