Answer:
a=4
Step-by-step explanation:
4(2+a)=24
8+4a=24
4a=24-8
a=16/4
a=4
There would be 5 buses and 9 extra seats because 5 x 52 is 260 and you need 251 and there would be 9 extra seats
61.36 U.S. dollars is the answer
Answer and explanation:
Answer:
Two sample t test
Explanation:
The test that could be used here is the two sample t test. The two sample t test compares two groups to ascertain if there is an average significant different between the two groups being compared, also making sure the result of difference is not random. For instance to test the above example, the two sample t test compares the group before they watch the commercial with the group after the commercial to know if there is a significant difference between the two groups.
Multiply then add and then subtract
