Gena and her friends each estimated the quotient of –137.56 divided by –6.12 using compatible numbers. which shows the best estimate using compatible numbers?

C.

Step-by-step explanation:

We are given that,

Gena estimated the quotient .

Now, as we know that,

Compatible numbers are the integers in the numerator and denominator that are closest to the given numbers (in decimals), which are easy to compute.

As we have the numbers -137.56 and -6.12 in the numerator and denominator respectively, which gives the quotient 22.48.

Thus, the closest integers to these numbers that gives the same quotient is -135 and -7 such that

i.e. is same as

Hence, option C is correct.

 Third Option is correct.

Step-by-step explanation:

Since we have given that

-137.56 ÷ 6.12

which is equal to 22.47≈22.5 approx.

We need to find the best estimate using compatible numbers .

we will go with the options:

1) -140÷-7 = 20

But our actual answer is 22.5, so it is quite far .

2) -140÷6=23.333333

but again our actual answer is only 22.5 but

23.34 >22.5

4) -135÷-5=27

Again 27>22.5 so, it can't be our best estimate answer.

3) -135 ÷ -7=22.5

which is exactly equal to our required answer.

So, Third Option is correct.

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

i believe the answer is the polygon, heptagon.