Question

A farmer soaked 50 seeds and found that 42 of them germinated. What percentage of the seeds germinated?

Hot water was poured into a steel cup and its temperature was recorded every 2 minutes. The line graph shows the results. By how many degrees Celsius did the temperature fall in the first 4 minutes?

A seedling was 4.5 cm tall on Monday. After 6 days it was 11.7 cm tall. What was its average growth per day, in cm?

Students timed 10 swings of a pendulum for three lengths of string. Each was repeated three times, as shown in the table. Using the readings for the 50 cm string, find the average time for one swing (in seconds).