Write 50,722 in words​

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Find the distance between c and d on the number line c=3 and d=11