What is the best approximation of the value of a sphere with an 18 cm diameter? a . 615m^3 b . 1526m^3 c . 2462m^3 d . 3052m^3

The center of a circle represent by the equation (x+9)^2+(y-6)^2=10^2 (-9,6), (-6,9), (6,-9) ,(9,-6)

What is the factored form of the following expressions? d^2 – 13d + 36

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?