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Answer:</h2>
Front-end estimation is a particular way of rounding numbers to estimate sums and differences.
To use front- end estimation, add or subtract only the numbers in the greatest place value. Then add the decimals rounded to the nearest tenth.
Step-by-step explanation:
In front end estimation we are going to replace the original number with a number that is close by but only has one non zero digit. Examples: {20, 300, -50, 1,000, 80,000}. For example take the number 32, the choices to replace it with are 30 or 40 (they both have only one non-zero digit).
It will be 18 spoonfuls because you have to do 6 times 3 which is 18.
The correct answer is D.
A number is in scientific notation when it is in the format of a x 10^b, where 0<a<1
The answer is an Equilateral Triangle. I believe.