For each expression, select all equivalent expressions from the list. (a) 11x - 4x + 10x
O 7x + 10x
0 17 + x
10x - 7x
17x
(b) 2(1+8y)
2+1.2 +8y
2 +16y
02.1+2.8y
O2 + 8y
PLEASE HELP I CANT FIGURE THEM ALL OUT!!!

Lena reflected this figure across the x-axis. she writes the vertices of the image as a'(−2, 8), b'(−5, 6), c'(−8, 8), d'(−4, 2).

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.