Ok, make sure you put the powers correctly. I know what you mean but someone else may not. So it's step 2. This is because the 4 doesn't mean add a digit.
Answer:3(7)+2=23. 21+2=23
Step-by-step explanation:
Answer:
$16
Step-by-step explanation:
1/4x4=1
So 4x4 = 16
$299 and $199 adds up to 498, including the tax rate 7.5% and your total is $535.35
Answer:
2k³ is the GCF.
Step-by-step explanation:
GCF of 
Finding the factors:
=10k³[Factoring 10k³]
=2×5×k×k×k
=6k³[Factoring 6k³]
=2×3×k×k×k
Common factors in 10k³ and 6k³.
=2×k³
=2k³