If the function f(x) represents the number of words that janet can type in x minutes, what is the possible domain for the function?
1) the set of integers
2) the set of irrational numbers
3) the set of non-negative integers
4) the set of real numbers

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?

In the given figure ar(adf) =ar(cda) and ar(cdf) = ar(cdf). show that abdc and cdfe are trapeziums.

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?