when solving the following system of equations by substitution what would be a correct first step x=y–7 3x+15y=-1

Which is the product of 58 and 1,000? a. 0.058 b. 5,800 c. 58,000 d. 580,000

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e