How can i make this true 3×26+4 = 90

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

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 length of the normal and the angle it makes with the positive x-axis. (see pictured below)