Step-by-step explanation:
a(n) = a +(n-1)d
a=13
d=9-13=5-9=-4
°.° a(n) = 13 +(n–1)-4
hope this helps
Answer: The perimeter of a two-dimensional shape is the distance around the shape. It is found by adding up all the sides (as long as they are all the same unit). The area of a two-dimensional shape is found by counting the number of squares that cover the shape.
Step-by-step explanation:
Answer:
A
Step-by-step explanation
Well the boys can be chosen again all in a row but the girls cdan't therfore the answer is A
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Answer:
1 foot
Step-by-step explanation:
1 1/2 = 3/2
2/3*3/2 = 1