Answer:11
Step-by-step explanation:
Step 1: you need to multiply-2x4 and you would get 8
Step2: you add 3 and you get 11
Answer:

Step-by-step explanation:
b increased by 16 is at most 20 in equation form
increased means add
b+16
is at most means 

30 because it is the first number that both 5 and 6 meet at
The 7 in the hundreds place is 10 times bigger than the 7 in the tens place