Which would be the most appropriate way to estimate -6.1(0.22)? Check all that apply. 1.Use rounding to get -6(0.2), and then multiply.
2.Use compatible numbers, such as -6(0.5), and then multiply.
3.Use the benchmark numbers -6 and 1, and then multiply.
4.Use front-end estimation to get -6(0.2), and then multiply.
5.Round the factors to the nearest whole number, and then multiply.

the numbers are a b d c e just so ya know.

Estimate -6.1(0.22)

Use rounding to get -6(0.2), and then multiply.

Use front-end estimation to get -6(0.2), and then multiply.

Round the factors to the nearest whole number, and then multiply.

Step-by-step explanation:

Actual

-6.1(0.22) = -1.342

Estimate

-6 (.2) = 1.2

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles