It takes Gretchen 275 seconds to travel 5500 m in her car. What is her rate of speed in kilometers per hour

72km/h

Step-by-step explanation:

Convert units to kilometers and hours.

275 seconds ÷ 60² ≈ 0.0764 hours

5500 meters ÷ 1000 = 5.5 km

Convert to kilometers/hour.

5.5km ÷ 0.0764hrs = 72km/h

75

step-by-step explanation:

you do x-29=46 (the number of cantaloupes sold)

in order to find x, you have to find what minus 29 equals 46, meaning you'd have to add 29 to 46.

29+46=75

if you replace x with 75, the equation looks like:

75-29=46

x=75