Explain how you can use mental math to perform the following addition. 61,438+54,579+28,562

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?

Describe how you can act financially responsible.

Ebert used to make $22 an hour, but got a 10% raise. how much more will he make in a 40 hour work week with raise?