I need help! Plz someone help me

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

Determine domain and range, largest open interval, and intervals which function is continuous.

Pllz me also i will report if you are in for the 1. complete the table by converting each decimal to a fraction. repeating decimals. 0.31 0.125 0.1607 2. describe any patterns you noticed when converting the decimals in the table above.