If a bus travels 20 km in 30 minutes. what is the average speed of the bus?
a. 20km/h
b. 30km/h
c. 40km/h
d. 50km/h

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

The label on the car's antifreeze container claims to protect the car between ? 40°c and 125°c. to convert celsius temperature to fahrenheit temperature, the formula is c = 5 over 9 (f ? 32). write and solve the inequality to determine the fahrenheit temperature range at which this antifreeze protects the car. ? 40 > 5 over 9 (f ? 32) > 125; ? 40 > f > 257 ? 40 < 5 over 9 (f ? 32) < 125; ? 40 < f < 257 ? 40 < 5 over 9 (f ? 32); ? 40 < f 5 over 9 (f ? 32) < 125; f < 257

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2