Pls help me 15 points total

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?

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points

Find the amplitude of a sinusoidal function that models this temperature variation