B. To be careful, use brackets: 10(1*2) + 4x which will be 20 + 40x or as you have it, 10*2 + 40x.
Without any calculations it's evident it can't be neither B (both numbers are even, so they're divisible by 2) nor C (the numbers end in 0 and 5, so they're divisible by 5).
A.

Both numbers have a factor of 3, so they're not relatively prime.
That means it must be D. But, let's check it.

Indeed, those two numbers are relatively prime.
Answer:
Zero
Step-by-step explanation:
Zero
range is all the y values.
Therefore, the range is : {-4,-2,2}
all the y values listed, however, if u have repeating y values, u only have to list it once.
Answer:
Step-by-step explanation:
You haven't provided the expressions to choose from.
4⁻² × 7⁻² = (4×7)⁻² = 28⁻² = 1/28²