Answer:
47.42
Step-by-step explanation:
Try solving this way
23.85
+07.42
+16.16
=======
47.42
Answer: 2length plus 2breath circle is 2pie r
Step-by-step explanation:
perimeter of a rectangle is 2L + 2 B a
I think the answer is 22mn2+66m2n-64 since there are no more like terms
The problem is asking you to simplify the exponents. When you multiply two or more powers with the same base, the exponents can be added and subtracted. In this case, the base is 7.

7 can also be written as

.

The answer would be 7³ if you kept the exponent, or 343 if you simplified further.