Yeah there all right but I have a little hinch for the last and first one
Answer:
A. the rational number system is closed under addition, but not multiplication
Step-by-step explanation:
may i pleaseee have brainliest
PXrXt /100 is the formula
-8--2=-8+2=-6
B is the correct answer
.
Answer:
Person will be 24 metres above the ground after 1.50 minutes
Step-by-step explanation:
Given:

To find:
time when the person be 24 meters above the ground
Solution:
Put 

So, the person will be 24 metres above the ground after 1.50 minutes