9+9+2=20
9+8+3=20
9+7+4=20
9+6+5=20
(These ones are kin of repeated but in a different order:)
9+5+6=20
9+4+7=20
9+3+8=20
9+2+9=20
A = 1/2(15+7+15+7)(13)
A= 1/2(44)(13)
A = 286
answer
286
The members of a book club spend $0.4 for each Bagel as refreshment.
Let x represent the cost of each bagel.
At a meeting, they bought 6 bagels and spent $9.00 on beverages, hence:
Cost = 6x + 9
At another meeting, they bought 8 bagels and spent $8.20 on beverages, hence:
Cost = 8x + 8.20
Since the same money is spent on each meeting, hence:
6x + 9 = 8x + 8.2
2x = 0.8
x = $0.4
Therefore the cost of each bagel is $0.4
Find out more at: brainly.com/question/13911928
Step-by-step explanation:
Since the polygon has four vertices (D,E,F and G), it is a quadrilateral (4 vertices).
