Answer:
9 red shirts
Step-by-step explanation:
30 x 0.30 = 9 red shirts
A cross section is the intersection of a solid an a plane
Answer:
b)Add the equations to eliminate x.
Step-by-step explanation:
y= x+20
y= - x+2
Result of the addition: (-x cancels x)
2y = 22
y =11
11=x +20 -9 = x
11=9+2
11 = -9 +20
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