hii :) my other account got banned for no reason so i made this account, i don’t have many points now but i love you all so here is a free 5 points :).

Three coins are flipped. what is the probability that there will be at least two tails?

Explain why the factor 1.5 is broke. into two numbers in the model.

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.