Christian can paint a car in 6 hours. carter can paint the same car in 3 hours. if they work together, how long will it take to paint the car?

If a =6, what is the value of 2a(3b + 5c)?

Roger and natalie travel in similar cars. roger's car drives the two miles to school in 7.5 minutes. natalie drives the same distance in the opposite direction but in only 6.5 minutes. what is true of their velocities?

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary