Answer:
3x...
Step-by-step explanation:
There is nothing else to do an equation with..
Answer:
B.
Step-by-step explanation:
because they have the same base and it's a multiplication so you have to add the exponents
Answer:
40:70 becomes 20:35 which becomes 4: 7.
The answer is 4:7
Step-by-step explanation:
The answer is C because 51×-2=-102 and 51×-0.5=-25.5
So it -102+(-25.5) or C