Suppose the radius of a circle is \color{purple}{3}3start color purple, 3, end color purple. what is its circumference? either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi and enter your answer as a decimal.

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x