Answer:
21
Step-by-step explanation:
2(2) +7
14+7
21
In this problem, it is essential to use the order of operations, or PEMDAS (parentheses, exponents, multiplication, division, addition, subtraction). First, you solve 7-3=4. Then, you multiply 7 times 4, which is 28. Lastly, you add 28 to 156 which is 184. So your answer is B.
We have been given the expression

We have to write this expression in the form 
In order to write the given expression in this form, we can use some exponent property.

On using the property (1), we have

Now, on using the property (2), we get

Therefore, the simplified form of the given expression is

Answer:
red cuz its an odd number so every even number row is blue
Step-by-step explanation:
Hey there! I'm happy to help!
Let's look at our diameters.

We want to see how many times greater the diameter of the IC 1101 is than the Milky Way. So, we will divide it's diameter by the diameter of the Milky Way.

We divide the numbers without exponents, giving us 5. Then, we divide the 10s with exponents. When dividing exponents, you subtract the numbers in the exponent to get your result. For example, x³÷x²=x

Therefore, your answer is 50.
Have a wonderful day! :D