The answer to your problem is A because you must add them altogether but i might be wrong im just trying to help you out
Didnt feel like doing them all , i only attempted to answer the first one which is " a " ( -6 ) hope i helped :)
Answer:
7
Step-by-step explanation:
Answer:
utv = 2x-57 = 41
stv = x = 49
Step-by-step explanation:
x+2x-57=90
3x=147
x=49