(8th grade math) how do i do this???

y = 5, y = -5

Step-by-step explanation:

In this question, you would have to solve the equation for "y".

Solve:

-3y² = -75

Divide both sides by -3.

y² = 25

Square root both sides to cancel out the exponent.

√y² = √25

y = ±√25

Simplify the square root for both positive and negative terms.

y = 5

y = -5

Your final answer would be y = 5 and y = -5

no idea

step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870