A child jumping rope can jump at a speed of 280 revolutions every 2 minutes. What is the number of revolutions the child can jump in 3.5 minutes?

The axis of symmetry for the graph of the function f(x)=1/4^2+bx +10 is x=6. what is the value of b?

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

On a architect's drawing of a house, 1 inche representa 1.5