Eight decreased by six times the number k
The difference of eight and the product of six and the number k
Eight minus six times k
Six multiplied to k is less than 8
Answer:
triangle AEH, triangle CFG, triangle BFG, and triangle DEG.
so b,c,e,f
this is right for e2020.
No; we have
. Substituting these into the DE gives

which reduces to
, true only for
.
1. D
2. D
I don't know the answer to number 3 sorry.