The average of 3 numbers is 36. the second number is 4 more than the first. the third is twice the first. what are the three numbers?

Explain how you can use the associative property to evaluate (7x50)x4.

Harry owes the bank money. to repay his debt, he paid $150 back to the bank each month. after 10 months, his remaining debt was $6900. what was the original amount of harry's debt? how long did it take harry to pay back his entire debt?

Round to the nearest ten thousandth.i dont get this