-3y -21 +8 = -28
-3y -13 = -28
-3y = -15
y= 5
Answer:
I'm pretty sure the answer is the second choice
Step-by-step explanation:
because you have to add X to both sides
(a). The element a₂₁ is the number of boys enrolled in Lacrosse.
(b). The address is a₁₂.
(c). [196 174]
[136 169]
[214 242]
(d). The matrix represents the number of boys and girls from towns A and B enrolled in different sports classes.
(e). 1.125 A = [108 90 ]
[72 99 ]
[117 135]<span />
It think I would be 4.5 if it’s the same order as the left side
The perimeter is just all the lines around the outside of the shape so basically take all the numbers and add them together to get the answer
