Answer:
i think a is correct
Step-by-step explanation:
Answer:
12/35
Step-by-step explanation:
Multiply both numerators and denominators.
2/5 * 6/7
=12/35
Answer:
-7
Step-by-step explanation:
Square numbers always have two possible roots: a positive and negative root. This is because two positive numbers multiply to make a positive number and two negative numbers also multiply to make a positive number
-7 × -7 is still 49, just like 7 × 7
Hope this helps!