How do you write 6.69x10^-4 in standard form?

Perform the required operations on the following functions given: f(x)= 3-x; g(x)= -2x find g[f(x)]

Are carpet coast $15 per square metre. the total delivery charge is $21 peter buys n squared metres of carpet what is the expression which represents the total cost in $

4. bob solved the inequality problem below incorrectly. explain his error and redo the problem showing the correct answer. −2x + 5 < 17 −2x + 5-5 < 17-5 -2x/-2 < 12/-2 x < -6