Answer:
7.5
Step-by-step explanation:

Answer:
7
Step-by-step explanation:
okay
Answer:
19.4
Step-by-step explanation:
50% is one half
so 9.7 is half of ....
Then .... is twice 9.7
.... = 2 × 9.7 = 19.4
Answer:
1)
2) 
3)
4)
Step-by-step explanation:
The slope formula of the line that pass across two points P1(x1,y1) and P2(x2,y2) is:

You can use this formula to solve all the four points:
1)

2)

3)

4)

Answer:
Student B did the problem corectly
Step-by-step explanation:
Student a did 3*4 while student B did 3*3*3*3 which would equal 27