Answer:
the second description and and expression is correct
Step-by-step explanation:
the first one is wrong because it says 7 minus while it should be minus 7
Answer:
Explanation to answers are shown in the attachment
Step-by-step explanation:
This is a long solution but the detailed step by step and appropriate mathematical manipulation has been done as shown in the attachment.
Answer:
35 students
Step-by-step explanation:
70% of 50 = 0.7×50 = 35
Answer:
300
Step-by-step explanation: