1) what number is 20% of 40?

2) 40% of what number is 15?

3) what percent of 75 is 27?

4) 0.2 is what percent of 16?

5) 19.6 is 24.5% of what number?

Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = x2 – 10x +2?

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17