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PLEASE HELP ME (WILL MARK BRANLIEST)

PLEASE HELP ME WILL MARK BRANLIEST class=

Sagot :

Answer:

49 can’t help

50: r^2

51: 21a

52: s^2*4s+3

I got you 49 is 8x cause think about it 2 lengths and 2 widths add it all to get the perimeter so it would be 3x+3x+x+x = 8x