Answer:
b=74 degrees c=1O6 degrees
Step-by-step explanation:
B is 74 because its across from the 74 degrees
C is 1O6 degrees because 18Odegrees-74degrees-1O6degress
Cool. I hope she knows how to do it. (ahem)
The first one simplifies to 81a^4b
Sorry, I cannot solve the second one without placement of parentheses on the exponents
