(1,1) -->> 1 >= 4(1) - 5 -->> 1 >= 4-5 -->> 4 >= -1
C.62% of the students participated in summer activates.

The Correct choices are :
<u>Question</u> 1 :
c. commutative property of multiplication
<u>Question</u> 2 :
d. commutative property of addition
<u>Question</u> 3 :
c.
, -0.4, 0.8,
, 
Graph is accurate enuf so that you can determine immed that the vertex / minimum is at (3,-4) and that the y-intercept is at (0,5).
If by "solutions" you mean "roots," the roots are {1, 5} (where y=0).