Answer:
354 and 681
Step-by-step explanation:
I just played with numbers because I learned this when I was 4 but forgot the concept, but now I’m 12 in 11th grade.
Answer:
The expression will be simplified into 
Step-by-step explanation:
It's like addition, when you multiply exponents that are on the same bases as each other.
Answer:
20+x+45+90= <u>x + 155</u>