A system of equations is shown below. Which of the following replacements can be made to produce the same (xy) solution?
23-y=4
3r + 2y = 1
A Replace 2x - y = 4 with 8x - 4y = 4
B Replace 3x + 2y = 1 with 5x + y = 5.
Replace 3x + 2y = 1 with 6x + 2y = 2.
D Replace 2x - y = 4 with 3x + 2y = 1

In the triangles, tr = ge and sr = fe. if = 3.2 ft, which is a possible measure of ? 1.6 ft 3.0 ft 3.2 ft 4.0 ft

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities