Answer all the four q

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?

Find the missing factor. write your answer inexponential form.9^2=9^4×

Solve for b. ab + c= d b= a + old ob=allc-ch b= (d-c/a