What does preimage mean?​

Find the area of the triangle shown 3 by 6

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?

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay