Answer:
25 questions
Step-by-step explanation:
2 students can answer 40 questions in 1 h.
1 student can answer 20 questions in 1 h (60 min).
1 student can answer 5 questions in ¼ h (15 min).
5 students can answer 25 questions in ¼ h.
el español es mi idiomad
Answer: 145.8
Step-by-step explanation: you have to divide 45 and 25 to get 1.8, then you get 81 and you multiply 81 x 1.8 to get your answer.
Parenthesis first 5-2=3.
7^2=49
-3*3=-9
49-9=40.
A is your answer.