Answer:
Graph A
Step-by-step explanation:
A = y = 1.5 x = -2\<x,< 3
B = y = 0.2 x = -2<x < 2
C = y = -1.2 x = -2< x\< 3
D = y = 1.2 x = - 2< x < 2
Answer C
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Last week she sold 90+210=300 items in total. This week, she sold 90*1.5+210*1.3=408 items. The percent increase in sales is (408-300)/300*100%=36%.
Answer:

Step-by-step explanation:

Sum of two sides of the triangle should be more than 3d side.
n<20+5,
n<25
Third side should be more than difference of two other sides.
n> 20-15
n>5
So, n should be
5<n<25.