(11 + 21) - ( 3 - 100 )
= 32 + 97
= 129
or (11+21)-(3+100)
= 32 - 103
= - 71
I have no idea about your topic but hope it's right! Good luck
Answer:

Step-by-step explanation:
x = 10
x = 20 / 2
x = 4*5 / 2
The bottoms are all multiples of seven
To find out how many pages she needs to read everyday, you have to divide.
128.5/4.5 = 28.55
So your answer is B) 28.55
Hope this Helps!!