In this diagram, the measure of ZRQS is 60° less than the measure of ZPQS. Which equation can be solved to find the measure in degrees of ZPOS ?

Which linear equations have an infinite number of solutions? check all that apply.  (x  –  3/7)  =  2/7(3/2x  –  9/14)8(x  +  2)  =  5x  –  1412.3x  –  18  =  3(–6  +  4.1x)(6x  +  10)  =  7(x  –  2)4.2x  –  3.5  =  2.1 (5x  +  8)

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)