143.7 I believe since you take 6.80*20=136+46=2.3*20
136+46=182
182*7.65%=168.08
168.08*8.95%=153.04
153.04*6.1%=143.7
Answer:
adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
Step-by-step explanation:
please mark brainleist
4/5 = 8/10 = 12/15 = 16/20 = 20/25
Hope it helps