Answer:
21300
Step-by-step explanation:
3 keeps 50 the same, and if the number is below 4 then the number stays the same, if it's 5 and up the number goes up by one digit.
X- smaller number
y- larger number
5x=6+y
Answer:
14a+35
Step-by-step explanation:
7×2a=14a
7×5=35
=14a+25
Answer: (b+5)(b-5)
Step-by-step explanation:
both b^2 and 25 are square numbers, so square root both of them to give b and 5, then put into brackets with a + and -
Answer:
20x+68
Step-by-step explanation: