Which would be the most appropriate way to estimate -6.1(0.22)? check all that apply. use rounding to get -6(0.2), and then multiply. use compatible numbers, such as -6(0.5), and then multiply. use the benchmark numbers -6 and 1, 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.