Answer:
4x - 6
Step-by-step explanation:
2 × 2x = 4x
2 × -3 = -6
4x -6
Count how many times you have to move the decimal point to move it past the first number. in this case 6, so...
1.84*10^-6 is the answer.
Hope this helps! :)
Hi, thank you for posting your question here at Brainly.
This is a common work problem in Algebra. To solve this, the general form of the equation would be:

let A denote you and B denote your classmate. Substituting,

It would take about 2.4 days for the both of you to complete the calls.
Biggest is all nine's
smallest is 1 then zeroes
greatest
999999
smallest
10000