I need help

(Solving System by Substitution)​

Secant ac and bd intersect at point e inside f what is the measure of aed if measurements cd equals 30 a b is 50 and cb is 170

What is the square root of 4/9? explain the steps. you!

Manuel drives 300 miles to orlando fl. he drives at 50 mile per hour. after driving for two hours he takes 15 minutes break two hours after his first break he takes a 30 minutes break the he drive for two hours more including the two breaks how long does it take manuel to drive to orlando