Answer:
Tyler made 80 bracelets on Thursday
Step-by-step explanation:
Tyler made
23 bracelets on monday
78 bracelets on Tuesday
54 bracelets on Wednesday
T bracelets on Thursday ( let number of bracelets made on Thursday be T)
Total number of bracelets made by Tyler = 235 = sum of bracelets made on Monday, Tuesday, Wednesday and Thursday
235 =23+78+54+T
235= 155+T
T = 235-155
=80
Tyler made 80 bracelets on Thursday