For Pitch Trax question, I'd say pitchers
For the def of technology, science of problem solving
For the automoblies and jets, answer should be trains.
For the last question, I think the answer you had is right.
I'm so sorry if anything of these are wrong.
Answer:
75 students
Step-by-step explanation:
first write a ratio of the students asked to students dislike
40:30, 40 to 30, or 40/30
now simplify the ratio
4/3
now she asked 40 students, so we have to find out the unit rate
so we have to flip the fraction to 3/4 and then divided the top and bottom by 4
0.75/1
now multiply the top and bottom by 100
75/100
75 students