Which expression is equivalent to 8a + 20?

a. 4(2a + 20)
b. 4(2a + 5)
c. 4(4a + 16)
d. 4(4a + 5)

Triangle abc is reflected over the line y=x triangle abc has points (-6,-,-1) and (-5,-6) what is the c coordinate

Which shows the correct lengths of side c in both scales? scale 1: 45 m; scale 2: 60 m scale 1: 60 m; scale 2: 45 m scale 1: 36 m; scale 2: 27 m scale 1: 27 m; scale 2: 36 m mark this and return save and exit

X+y=-4 x-y=2 use elimination with adding and subtraction