Use the lcd to rewrite 5/6 and 3/10 with the same denominator

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap