A quadrilateral is a four-sided polygon with four angles.
ABC = 408
C + 7 = B
A + 5 = B
B - 7 + B - 5 + B = 408
3B - 12 = 408
+ 12 = +12
3B = 420
/3 = /3
B = 120
A = 115
C = 113
The answer is A = 115, Abel has $ 115
I think the critters ate 5 1/2 packages of Toni’s oatmeal.
If he ate half as much as the others you should total up the others and divide it by 2.
3 + 2 + 6 = 11 11 divided by 2 = 5 1/2
I hope you find this helpful.