14*c = x
14 * c means 14 rows times c chairs in each row.
= x will equal the answer of how many chairs in total, once we know how many chairs are per row.
Answer:
120
Step-by-step explanation:
y=-3/7x+3
A(0;3) B(7;0)
(y-yA)/(yB-yA)= (x-xA)/(xB-xA)
y-3/-3= x/7
7y-21=-3x
74
(23-3)+(6×9)
(20) +(54)
=74